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need the answers for the science and math portion of the teas RETAKE version.

teas 6
13987 For retake version of teas 6 Science and math teas
13986 For the retake version of the teas test Science
13979 ATI TEST VERSION SIX FOR SCIENCE 13859 ati test six version
13960 I'm re-taking teas version 6 and need help with reading, structure, and science. Thanks! Teas version 6 re-take

Ati teas Test six version 

Ati teas 6 version
13923 Ati science section teas Test six version Ati teas
13921 Reading and science Teas 6 Teas 6
13920 Reading and science Teas 6 Teas 6
13902 if you have the right reading part let me know please. i need the retake one because i already took it one time. do you have everything?? if so how much for the package? teas 6 reading and science ( retake part)
13897 I am looking for the nursing entrance exam on science & reading (teas 6 test). Thanks in advance teas 6 test (readind & science)
13878 anyone who wants a challenge here it's an essay question the great ocean conveyor belt



1.        Free ears in dogs are controlled by dominant allele (F), and attached ears are controlled by the recessive allele (f). In addition, Short dogs is due to a dominant allele(S), and long hair is due to a recessive allele (s). Which of the following is the genotype of the dogs with free ears and short hair?

a.        ffss

b.        FfSs

c.        ffSs

d.        Ffss


2.        A blood sample taken from a patient who has an infection can be expected to show which of the following?


a          Elevated white blood cell count

b         Elevated red blood cell count

c          Reduce red blood cell count

d         Reduce White blood cell count


3.        Which of the following organs remove nitrogenous waste from the body?


a.        Liver

b.        Large Intestine

c.        Kidneys

d.        Gall Bladder


4.        An individual cell is able to make copies of its genetic information but is unable to produce encoded proteins. This indicates a possible problem in the_________________________.


a.        Centrosome

b.        Golgi apparatus

c.        Acrosome

d.        Ribosome


5.        Which of the following digestive system structures releases amylase?


a.        Goblet cells

b.        Gallbladder

c.         Salivary glands

d.        Duodenum


6.        Which of the following functions does the myelin sheath perform for a nerve cell?


a.        Nutrition

b.        Sensory perception

c.        Insulation

d.        Regeneration


7.        Which of the following organs is responsible for secretion of the hormone insulin?


a.        Pancreas

b.        Thyroid gland

c.         liver

d.         Adrenal Gland


8.        An increase in which of the following would lead to a decrease in the amount of oxygen in the blood?


a.        Inhalation rate

b.        Red blood cell count

c.        Exercise rate

d.        Alveoli surface area


9.        Which of the following body system break down proteins into amino acids?


a.        Digestive

b.        Endocrine

c.        Circulatory

d.        Excretory



10.     Which of the following layers of skin contains the sebaceous glands?


a.        Hypodermis

b.        Dermis

c.        Stratum corneum

d.        Epidermis


11.     In the image


12.     Osteoporosis result from which of the followings?


a.        A decline of osteoblast activity while osteoclast activity continues at expected levels

b.        A decline of osteoclast activity while osteoblast activity continues at expected levels

c.        An increase in osteocyte activity while osteoblast activity continues at expected levels

d.        An increase in osteocyte activity while osteoclast activity continues at expected levels


13.     Which of the following occurs in the cardiac cycle if the impulse triggered at the sinoatrial node never close?

a.        Diastole will shorten in duration

b.        The ventricles will not contract

c.        There will be an absence of systole

d.        The atria will not contract.


14.     Which of the following structures is found in all cells?

a.        Cell wall

b.        Mitochondria

c.        Nucleus

d.        Plasma membrane


15.     Which of the following types of cell stimulates other immune cells to attack and destroy?

a.        Helper T-cells

b.        Plasma cells

c.        Cytotoxic T-cell

d.        Natural killer cells


16.     The process known as gastrulation results in the formation of which of the following

a.        Germinal layers

b.        Neural crest

c.        Coelomic cavities

d.        Circulatory systems


17.     Which of the followings molecules must undergo replication before cell division can occur?

a.        ATP

b.        ADP

c.        DNA

d.        RNA


18.     Which of the following structures carriers blood away from the heart?

a.        Ventricles

b.        Arteries

c.        Capillaries

d.        Veins


19.     Which of the following demonstrates condensation?

a.        Dew drops from on a leaf

b.        A water puddle dries up.

c.        Water convert to steam

d.        Ice form on a pond


20.     Of pathogens by phagocytes are nonspecific cell

a.        Antibody- mediated immunity

b.        The internal aspect of adaptive immune system

c.        The internal aspect of the innate immune system

d.        Passive immunity




21.     Which of the following unit is used to indicate mass?

a.        Cm3

b.        Um

c.        Mg

d.        mL


22.     Which of the following demonstrate a chemical reaction of water?

a.        Water boils to produce steam at 100 C (212 F)

b.        Water produces gas with sodium metal

c.        Water and oil separate when combined

d.        Water dissolves sugar


23.     In the experiment, students put brine shrimp in water with different concentration of salt and counted the number.

Which of the following changes to the experiment will increase confidence in the validity of the result?


a.        Count the number of dead brine shrimp instead of living brine shrimp

b.        Add more brine shrimp to the water with the highest salt concentration

c.        Repeat the experiment several times, and calculate the average number of brine shrimp

d.        Reduce the length of the experiment from 24 hours to 8 hours.


24.     Where is the information stored in DNA?

a.        Deoxyribose sugars

b.        Phosphodiester bonds

c.        Phosphate groups

d.        Nitrogenous bases


25.     In the intestine by which of the following?


a.        Pancreatic secretions

b.        Brush- border enzymes

c.        Gastric juice

d.         Mucus production



26.     In which of the following locations does the development of blood call take place?

a.        Bone Marrow

b.        Spongy bone

c.        Endosteum

d.        Periosteum


27.     The component of an atom that possesses relatively little mass, thus being negligible in calculating the atom


a.        Proton

b.        Neuron

c.        Electron

d.        Quart.


28.     S and O are in the same periodic group and share chemical properties, but H2S is a gas at room temperature, following is the main reason for this?


a.        H2S has stronger ionic bonds than H2O

b.        H2S has stronger intramolecular bonds than H2O

c.        H2O has stronger ionic bonds than H2S

d.        H2O has stronger intramolecular bonds than H2S


29.     Which of the following reasons explains why it is important for new scientific findings to be published?

a.        Scientists will get paid if their findings are published

b.        Other scientists can validate or disprove the findings

c.        Publishing findings will help scientists become more biased

d.        This prevent other scientists from performing similar test.


30.     Which of the following organ system filter fluids?

a.        Gallbladder

b.        Kidney

c.        Spleen

d.        stomach

31.     the exchange of nutrients between tissues and blood primary occurs in which of the following locations?

a.        Capillaries

b.        Veins

c.        Arterioles

d.        Aorta


32.     The process by which gametes combine to form a zygote is called which of the following?

a.        Parthenogenesis

b.        Mitosis

c.        Meiosis

d.        Fertilization


33.     Which of the following cellular processes produces gametes?

a.        Mitosis

b.        Glycogenesis

c.        Apoptosis

d.        Meiosis


34.     C3H+ ________ O2   ======= 3CO  + 4H2O  . Which of the following balances the reaction above?

a.        1

b.        7

c.        5

d.        3


35.     which of the following blood vessels is the identified by the letter “K” in the image?

a.        Pulmonary vein

b.        Aorta

c.        Pulmonary artery

d.        Inferior vena cava


36.     Which portion of the autonomic nervous system is responsible for an increased heart rate?

a.        Sympathetic

b.        Central

c.        Parasympathetic

d.        Enteric


37.     Permanent damage to which of the following types of tissues in the spinal cord will cause paralysis?

a.        Muscle tissue

b.        Nervous Tissues

c.        Bone tissue

d.        Connective tissue


38.     Which of the following diseases is caused by immune system attacking the body’s nervous system?

a.        Pneumonia

b.        Muscular dystrophy

c.        Tuberculosis

d.        Multiple sclerosis


39.     Which of the following is the appropriate prefix to measure the amount of space taken up?

a.        Mili

b.        Deca

c.        Kilo

d.        Micro


40.     In addition to oxygen and carbon dioxide, the circulatory system is the primary delivery system for

a.        cerebrospinal fluid

b.        exocrine secretions

c.        biliary fluids

d.        endocrine hormones


41.     a biology class wants to perform an experiment to investigate the effect of different colors of light of green, yellow, red and clear cellophane and plant three seeds in each one. What part do the three seeds experiment?

a.        Confounding variables

b.        Independent variables

c.        Control variables

d.        Dependent variables

42.     Iodine directly helps which of the following glands to function properly?

a.        Pancreas

b.        Thyroid

c.        Adrenal

d.        Pituitary


43.     Genes are made of which of the followings types of sequences that code for one or more proteins?

a.        Nucleotide

b.        tRNA

c.        Protein

d.        Chromosome


44.     Which of the following is a characteristic of a good hypothesis?


a.        Original idea not based observation

b.        Raises further questions

c.        Should be testable

d.        Contains more than two variables.


45.     Which of the following

a.        Relaxation of the diaphragm

b.        Relaxation of the external intercostal

c.        Contraction of the diaphragm

d.        Contraction of external intercostal


46.     Which of the following gland regulate the function of other glands in the endocrine system?

a.        Thyroid gland

b.        Pineal gland

c.        Parathyroid gland

d.        Pituitary gland


47.     Which of the following reactions occurs during thermoregulation to increase body temperature?

a.        The body relaxes the muscle

b.        The body produces sweat

c.        The body begin shivering

d.        The body sends blood to the skin


48.     Which of the followings terms describes the removal of metabolic waste from the body?

a.        Catabolism

b.        Anabolism

c.        Secretion

d.         Excretion


49.     A deactivated deadly strain of bacteria was first treated with protease enzyme. It was bacteria became deathly

Which of the following statements is a valid conclusion from the experiment above?


a.        Killed bacteria components can make live bacteria deadly

b.        Dead bacteria are more deadly than live bacteria

c.        Protein are dangerous to bacteria and kill them

d.        Protease enzyme causes live bacteria to become deadly


50.     A DNA strand has the sequence 5’ A-C-A-G-T-A-A-A- 3’. Which of the followings if the real sequence?

a.        3’ T-G-T-C-G-G-C-A-T-T-T 5’

b.        3’ A-C-A-G-C-C-G-T-A-A-A 5’

c.        3’ U-G-U-C-G-G-C-A-U-U-U 5’

d.        3’ A-A-A-T-G-C-C-G-A-C-A 5’


51.     Gains and losses of which of the following generally create an electrolyte imbalance?

a.        Sodium

b.        Phosphate

c.        Riboflavin

d.        Sulfur




4 sections total very easy online homework with one short written question at the end of it only needing one full paragraph to answer it. message me for login after handshake


Biology Science Homeowrk Very Easy

Term Paper


The term paper should be 5 pages double-spaced using 12 point font or smaller. A minimum of 4 references are required.  Acceptable references include journals, books, and credible websites.  The topic for the paper must be chosen from the list below or cleared with me.  Either APA or MLA formats are acceptable.  All papers will be checked with anti-plagiarism software.  The term paper is due October 26th.


2011 Nuclear disaster in Japan          

Global climate change

Nuclear Energy                                  

Toxins in our food

Drugs in our waters                           

Mercury in our water and food

Human population growth                

Our environmental responsibilities as humans




the paper is very general and if you were to have any questions you could ask me about it 4 sources are required and I would appreciate it to be in MLA format with a source page also.


I am looking for a very good grade on this as it is important to gpa and am willing to tip for a great paper here....

Biology paper 5 page double spaced easy topic choices


Which of the following is the very first step in epidermal wound healing?

Which of the following are true of yellow bone marrow?

Which of the following pigments is not involved in determining skin color?


Which is the oily substance secreted by sebaceous gland?

Science questions for teas 6

Which of the following substances is secreted by sweat glands in response to breakdown of proteins and formation of ammonia?

Teas 6

Help with TEAS 6


Please download attachment for better view


Question 1

An unknown element is found to contain 45 protons and an atomic mass of 64, what is its atomic number?


It cannot be determined.








Question 2

The square above is based on the eye color of two parents, one of whom has brown eyes and carries the recessive gene for green eyes (a). What is the probability that a biological child of these parents will have brown eyes?









The spleen functions are part of the _____ system.

Which of the following completes the sentence above?









Question 4

Which of the following is an example of deductive reasoning?


Only 21% of a town’s population have expressed a desire to ban all cars. Therefore, the new proposition banning cars in the state is not likely to pass.


People who brush their teeth regularly have fewer instances of heart disease. Therefore, good dentistry can prevent heart attacks.


All soccer players who play professionally can kick well. Therefore, any future soccer player who is recruited to play professionally will be able to kick well.


All secretaries are good typists. Cynthia is a secretary. Therefore, Cynthia is a good typist.



Question 5

Which of the following is a possible cause of herniation of discs?






plantar fasciitis




 Question 6

Which of the following is a characteristic of the autonomic nervous system?


It regulates the voluntary control of body movements through the skeletal muscles.


It is the part of the nervous system consisting of the brain and spinal cord.


It regulates involuntary activity in the heart, stomach, lungs, and intestines.


It is thought to be the center of intelligence.


Question 7

During photosynthesis, which two compounds are combined to create the output of glucose and oxygen?


Carbon dioxide and water.


Carbon dioxide and bicarbonate.


Bicarbonate and water.


Carbon dioxide and multiple alkaline substances.


Question 8

Questions 8 & 9 are based on the following diagram:

Which of the following is true about the frog?


It is a member of the salamandridae family.


It is a type of amphibian.


It is a non-vertebrate.


It is closer to most tetrapods than to most newts.


Question 9

Questions 8 & 9 are based on the following diagram:

Which statement can be inferred about amphibians?


All amphibians are salamandridae, but not all salamandridae are amphibians.


Some amphibians are vertebrates, but not all amphibians are vertebrates.


Some salamandridae are amphibians, but not all amphibians are tetrapods.


All amphibians are vertebrates, but not all vertebrates are amphibians.













Question 10

What would this diagram be useful for?


determining outcomes for potential infection


diagnosing an infectious disease


controlling the spread of disease in undeveloped countries


training nurses to detect early onset symptoms of disease


Question 11

What type of bond between the complementary bases of DNA stabilizes the double helix structure?









Question 12

Which of the following subatomic particles are found inside of an atom’s nucleus?


electrons, neutrons, protons


neutrons, protons


electrons, protons




Question 13

Which of the following statements is true regarding trophic levels?


Tertiary consumers acquire more energy content than secondary consumers.


Producers acquire less energy than primary consumers.


Secondary consumers acquire more energy than primary consumers.


Tertiary consumers acquire less energy than primary consumers.



Question 14

Why does the human eye perceive a red colored dress as the color red?


The molecules of the dress do not absorb red light wavelengths.


The molecules of the dress absorb green and blue light wavelengths.


A red dress will primarily absorb red light wavelengths.


A red dress will not absorb light wavelengths from non-red colors.

Question 15

In a lab experiment designed to test the rate at which plants grow under artificial light, the kind of light used is which type of variable?










Question 16

Which organ system is primarily responsible for regulating metabolism, mood, and growth?


respiratory system


digestive system


endocrine system


lymphatic system


Question 17

In a vacuum, why doesn’t an elephant accelerate faster than a penny as it falls to the ground?


Vector components of an elephant are more complex than those of a penny.


An elephant is not a projectile, while a penny is.


They both have an acceleration of 9.8 m/s2.


The elephant is greater in mass but is slowed less by the effects of air resistance.


Question 18

Which train described below would have the greatest momentum?


A 9500 kg train car moving at 200 mph


An 8000 kg train car moving at 215 mph


A 9300 kg train car moving at 190 mph


A 8600 kg train car mobbing at 195 mph


Question 19

A scientist found that when an invasive species was introduced into a river, the population of salmon native to the region decreased. The type of correlation between these two populations could best be described as


a direct relationship.


an inverse relationship.


a direct and indirect relationship.


no decisive relationship.


Question 20

The addition of a catalyst to a chemical reaction will have what effect?


Increase the energy required for the reaction to take place.


Increase the time required for the reaction to take place.


Increase the rate at which the reaction takes place.


Reduce the amount of products in the reaction.


Question 21

The pharynx is part of what body system?











Question 22

Which of the following is true about eukaryotic cells?


They do not contain lysosomes.


They contain one chromosome.


They do not contain a nucleus.


They contain mitochondria.



Question 23

What characteristic of an element determines its specific isotope?


Number of protons.


Number of neutrons.


Number of electrons.


Number of quarks.

Question 24

What is NOT true about RNA?


It contains a sugar called ribose.


Thymine is not one of its base pairings.


It is unstable in alkaline conditions.


Its sugar is more reduced than DNA’s sugar.


Question 25

Which of the following scenarios would NOT give a normal distribution?


A distribution of the yearly income of families in the U.S.


The distribution of heights in a large sample of people.


The percentage of toxic wastes and pollution in the atmosphere vs. the lifespan of organisms in the location.


A curve with 97% of the population within the first two standard deviations.



Question 26

In a cell, the Golgi apparatus is found in what location?


Inside the nucleus


Inside the mitochondria


In the cell wall


In the cytoplasm


Question 27

Which taxonomic rank is the next-smallest after Order?









Question 28

In plants, ________ involves the formation of a _____?


cytokinesis, cleavage furrow


telophase, cell plate


cytokinesis, cell plate


prophase, DNA


Question 29

Which base is NOT found in DNA?











Question 30

Which of the following layers of the atmosphere is the closest to space?










Question 31

Which is NOT one of the four basic types of tissue?












Question 32

The stomach is _____ to the small intestine.

Which of the following correctly completes the sentence above?










Question 33

Which of the following is the atomic mass of an atom containing 42 protons, 42 electrons, and 37 neutrons?











Question 34

A patient who has suffered head trauma is not able to recognize people he has met around an hour earlier but is still able to recognize people he met before the injury. He most likely has damage to the:


Medulla Oblongata


Corpus Callosum




Pituitary Gland


Question 35

What process is illustrated in the diagram above?










Question 36

Of the following, which is not a type of chemical bond?










Question 37

If the amount of hydrogen in a balloon of fixed size is doubled, what happens to the mass and density of the balloon?


The mass and density both decrease.


The mass increases, but the density decreases.


The mass decreases, but the density increases.


The mass and density both increase.


Question 38

If you have 200 mL of a 60% sodium chloride solution, how much NaCl is dissolved in the solution?


20 g


50 g


80 g


120 g


Question 39

How many carbon dioxide molecules are required to balance the following reaction:

4C6H12O6 + 24O2 → _CO2 + 24H2O + Energy










Question 40

The graph above records the death rate of two types of male flies a certain number of days after a chemical pesticide is sprayed. What is the probability a male methuselah fly will be alive 75 days after exposure to the pesticide?










Question 41

A scientist wants to write an equation using the variables X, Y, and Z. What is the proper relationship between the variables if X represents time, Y represents energy, and Z represents power?


2XY = Z


XZ = 2Y


Z = X/Y


Z = Y/X





Question 42

What type of correlation is presented between price and quality?


strong direct correlation


weak direct correlation


strong indirect correlation


no correlation


Question 43

What type of cells result from mitosis?


one diploid cell


two haploid cells


two diploid cells


four haploid cells


Question 44

Cheetahs, rainbow trout, and inchworms belong to the same











Question 45

The presence of which hormone would NOT cause an increase in water retention?










Question 46

In which part of the heart does oxygenated blood flow out of?


Right ventricle


Left ventricle


Right atrium


Left atrium


Question 47

Which of the following hormones are secreted directly by the hypothalamus?











Question 48

Which of the following terms do these diagrams NOT portray?


Active transport


Facilitated Transport




Ion Channel


TEAS Science test for practice

Assignment 1: Applications of the Scientific Method
Due Week 4 and worth 160 points

The scientific method is useful in problem solving and decision-making in a wide variety of fields. In this assignment, you will demonstrate how to use the scientific method to make decisions and solve problems in your field of study or everyday life.

Identify a specific problem often faced in your field of study or everyday life. Research your problem and assess your data / research. Examples of such problems could be:

  1. Business
    1. Establishing a price for a new product using the law of supply and demand;

Write a three to five (3-5) page paper in which you:

  1. Explain the scientific method and describe the overall manner in which you would apply it in your field of study or everyday life.
  2. Propose one (1) testable hypothesis to explain / solve the problem you have selected. State the expected outcomes of your actions and include criteria for determining whether or not these actions would succeed. Note: Your hypothesis should be stated very precisely.
  3. Describe the main actions that you intend to put into place to test the hypothesis that you proposed in Question 2. Describe the way in which you would evaluate the success of your program. Include the results that you would deem as a success and the results that would be considered a failure.
  4. Discuss the wisdom behind the strategy you would use to test the hypothesis from Question 3, and describe the additional steps you might take, depending on the results of your test. Note: These additional steps might be to revise your original hypothesis (if the results were unsatisfactory) or to propose new hypotheses. The goal is to continuously improve your understanding of the factors influencing your outcomes, to be able to achieve greater results over time. 
  5. Use at least two (2) quality resources / references in this assignment. Note: Wikipedia and personal blogs do not qualify as quality resources.

Your report must follow these formatting requirements:

  • Be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides; citations and references must follow APA or school-specific format. Check with your professor for any additional instructions.
  • Include a cover page containing the title of the assignment, the student’s name, the professor’s name, the course title, and the date. The cover page and the reference page are not included in the required assignment page length.

The specific course learning outcomes associated with this assignment are:

  • Apply concepts in physical sciences to evaluate current trends and issues in the modern world.
  • Describe the physical processes influencing climate and weather.  
  • Use technology and information resources to research issues in physical sciences.
  • Write clearly and concisely about physical sciences using proper writing mechanics.
Applications of the Scientific Method



  1. Giraffes have long necks that allow them to reach more food sources in their habitat. The long neck trait is an example of
  2. selection.
  3. adaptation.
  4. radiation.
  5. homology.


  1. Which of the following is the most common kind of chemical bond in biological molecules?
  2. Covalent
  3. Ionic
  4. Delocalized
  5. Unsaturated


  1. A cylinder and an airtight piston are used in the following experiment. The piston is pushed up and down in the cylinder and the resulting pressure of the air inside the cylinder is measured with a pressure gauge. The results of the experiment are recorded in the following table: Volume of Air (L) Pressure Reading (Atm) 8 1 4 2 2 4 1 8 A hypothesis concerning the apparatus is stated as follows: "When the volume of the cylinder is decreased, the pressure is increased." Which of the following statements is true?
  2. The hypothesis is supported by the experimental data.
  3. The hypothesis is refuted by the experimental data.
  4. The hypothesis is not addressed by the experiment.
  5. There is not enough information to make a judgment about the hypothesis.


  1. Which of the following procedures is an appropriate negative control for testing the hypothesis that air contains bread mold spores? A. Seal slices of bread in a container to minimize air contact.
  2. Place slices of bread in a refrigerated environment.
  3. Add ingredients to the bread recipe that will slow mold growth.
  4. Expose a different mold-supporting medium to air.


  1. A researcher wants to develop a new pharmaceutical compound to treat pain. Which of the following strategies will likely be the most effective process?
  2. Test extracts from newly discovered plants for pain-killing substances.
  3. Read anthropological studies to discover plants identified to relieve pain.
  4. Study molecular structures of existing pain medications and make structural analogs.
  5. Research the pain receptors of people who have unusually high pain thresholds.


  1. The main function of lymphatic circulation is to
  2. transport hormones around the body.
  3. provide immune functions for protection.
  4. provide a backup for systemic circulation.
  5. transport nutrients and oxygen to cells.


  1. For which of the following temperature scales is 0° equal to the freezing point of water?
  2. Kelvin
  3. Fahrenheit
  4. Celsius
  5. Newton


  1. Which of the following is an appropriate description of the arrangement of the cell membrane?
  2. Fluid phospholipid bilayer containing embedded proteins
  3. Rigid carbohydrate bilayer containing embedded phospholipids
  4. Rigid layer of phospholipids with proteins on the outer surface
  5. Layers of protein and carbohydrates forming a fluid structure


  1. Which of the following is the mechanism by which water is reabsorbed in the renal nephrons?
  2. Osmosis
  3. Filtration
  4. Active transport
  5. ion exchange


  1. A study demonstrates that treatment of peptic ulcers with antibiotics results in improvement in a large number of patients. This implies that
  2. antibiotics neutralize stomach acid.
  3. these ulcers are caused by a bacterial infection.
  4. pressure ulcers can be treated in the same manner.
  5. antibiotics should be prescribed to prevent ulcers.


  1. Which of the following is the function of bile?
  2. Binding vitamins
  3. Storing minerals
  4. Emulsifying fats
  5. Breaking down carbohydrates


  1. A student wants to design an experiment to demonstrate the effects of acid rain on plant life. Which of the following substances should be combined with water to best simulate acid rain
  2. Vinegar
  3. Table salt
  4. Baking soda
  5. Ammonia


  1. Which of the following statements best describes the energy of a waterfall?
  2. The water has kinetic energy because of its position at the top of the waterfall.
  3. The water has potential energy because of its movement as it falls to the bottom of the waterfall.
  4. Potential energy changes to kinetic energy as the water falls.
  5. Kinetic energy changes to potential energy as the water falls.


  1. In developing countries, which of the following factors correlates with high birth rates?
  2. Increased availability of contraception
  3. Increased education and standard of living
  4. High infant mortality rate
  5. High availability of postnatal care


  1. An experienced mountaineer decides to climb Mount Everest using the same route in the same season and with similar materials and equipment used by a fatal1924 expedition. The scientific purpose of such a climb would be to
  2. show that modern technology makes climbing safer.
  3. identify routes that may be explored in future climbs.
  4. assess why the earlier expedition may have failed.
  5. examine changes in regional climate patterns.
  6. Which of the following processes produces haploid gametes?
  7. Meiosis
  8. Fertilization
  9. Mitosis
  10. Invagination


  1. The purpose of surfactant in the lungs is to
  2. facilitate lung expansion.
  3. bind oxygen from the air.
  4. improve lung blood flow.
  5. remove pollutants in the air.


  1. Which of the following terms describes changes in allele frequencies in the gene pool over a single generation?
  2. Macroevolution
  3. Microevolution
  4. Segregation
  5. Speciation


  1. NaOH + HS0-+ Hp + NaS0 24 24. Which of the following is the number of moles of NaOH required to neutralize 1 mole of H2S04 in the equation above? (Note: The reaction is not balanced.)
  2. 0.5 moles
  3. 1 mole
  4. 1.5 moles
  5. 2 moles 1


  1. Which of the following chemicals is insoluble in water?
  2. C6H6 {benzene)
  3. HCI (hydrochloric acid)
  4. NH3 (ammonia)
  5. NaHC03 (sodium bicarbonate)


  1. Plant -+ Deer --+ Tiger The first step in the energy chain that created the bonds of proteins in the tiger's muscle cells in the food chain shown above is the
  2. deer the tiger ate.
  3. plant the deer ate.
  4. photons the sun made.
  5. carbohydrates the plant made.


  1. Which of the following best describes the result of using a catalyst in a chemical reaction?
  2. The yield of product is increased.
  3. A more desirable product is often formed.
  4. A greater amount of heat energy is released by the reaction.
  5. The reaction is completed in a shorter amount of time.


  1. A population shows the following annual data: 3% emigration 2% immigration 2% births 1% deaths. Which of the following is the change in population at the end of the year?
  2. 3% decrease
  3. 2% increase
  4. 1% decrease
  5. No change
  6. Radiant heat energy from the Sun is most directly responsible for which of the following events of the hydrologic cycle?
  7. Return of water to the Earth by precipitation
  8. Transport of water across the Earth's surface
  9. Condensation of water vapor into clouds
  10. Evaporation of ocean water into the atmosphere


  1. Which of the following is a main function of vitamins?
  2. Providing structure to cell membranes
  3. Supplying the brain with an energy source
  4. Facilitating the action of enzymes
  5. Promoting the absorption of carbohydrates


  1. Which of the following events occurs during photosynthesis?
  2. Release of oxygen
  3. Net increase in cellular ATP
  4. Breakdown of carbohydrates
  5. Production of carbon dioxide


  1. Which of the following events occurs during the S phase of the cell cycle?
  2. DNA synthesis
  3. Protein production
  4. Differentiation
  5. Dormancy


  1. Which of the following structures is present in both prokaryotic and eukaryotic cells?
  2. Golgi apparatus
  3. Cell membrane
  4. Endoplasmic reticulum
  5. Chloroplast



  1. Two students collect information about the number of dandelions in a park. Based on their sampling, they estimate that there are 900 dandelions in the 300-square-meter city park. To determine the accuracy of their estimate, which of the following questions is necessary?
  2. What was the range of sizes among the sampled dandelions?
  3. How many samples were taken to determine the estimate?
  4. What time of day was the sampling conducted?
  5. Were the dandelions distributed only in grassy areas?


  1. During the process of embryogenesis, formation of multiple cell types from stem cells occurs due to
  2. differentiation.
  3. metamorphosis.
  4. divergence.
  5. reorganization.


  1. Cellular respiration of glucose is an example of which of the following?
  2. Anabolism
  3. Reverse osmosis
  4. Osmosis
  5. Catabolism


  1. Which of the following cranial nerves is involved in the control of balance?
  2. Optic
  3. Olfactory
  4. Auditory
  5. Facial


  1. Three liquids of differing densities are studied. Samples of liquid 1 and liquid 2 are placed in a container together. Liquid 1 rises to the top. Another sample of liquid 1 is placed in a different container together with liquid 3. This time, liquid 3 rises to the top. If all three liquids are layered in one container, which of the following would be the correct order of the liquids from the bottom up to the top?
  2. 2, 3, 1

B.3, 2, 1

  1. 1, 3, 2

D.2, 1, 3


  1. Which of the following properties of water explains its characterization as the universal solvent?
  2. Kinetic energy of liquid water molecules
  3. High specific heat
  4. Polarity of water molecules
  5. High surface tension


  1. Which of the following is the term given to the sequence of nucleotides that contains the information to make a specific protein molecule?
  2. Promoter
  3. Gene
  4. Operator
  5. Locus


  1. Which of the following is true regarding the structure of atoms?
  2. The amount of charge on a proton is greater than the amount of charge on an electron.
  3. Isotopes of an element differ in the number of protons in the nucleus.
  4. The mass of each electron is the same as the mass of each proton.
  5. The neutrons make up a significant part of the atomic mass.


  1. Which of the following is correct regarding the pH scale?
  2. A substance with a pH of 3 is twice as alkaline as a substance with a pH of 4.
  3. A substance with a pH of 3 is twice as acidic as a substance with a pH of 4.
  4. A substance with a pH of 3 is 10 times as alkaline as a substance with a pH of 4.
  5. A substance with a pH of 3 is 10 times as acidic as a substance with a pH of 4.


  1. Which of the following statements correctly describes the change in coat coloring of an Arctic fox from brown in summer to white in winter?
  2. The fox's phenotype changes, but the genotype does not.
  3. The fox's genotype changes, but the phenotype does not.
  4. Both the phenotype and genotype of the fox change.
  5. Neither the phenotype nor the genotype of the fox changes.


  1. Which of the following is the rhythmic contraction of smooth muscle that propels food through the esophagus?
  2. Peristalsis
  3. Anaphylaxis
  4. Sarcomere
  5. Chemotaxis


  1. In humans (2n =46), mitosis results in ____ and meiosis results in _____ which of the following options correctly completes the sentence above?
  2. 2 cells with 23 chromosomes; 4 cells with 46 chromosomes
  3. 4 cells with 46 chromosomes; 2 cells with 23 chromosomes
  4. 2 cells with 46 chromosomes; 4 cells with 23 chromosomes
  5. 4 cells with 23 chromosomes; 2 cells with 46 chromosomes


  1. A blood clot is composed of which of the following components?
  2. Platelets and fibrin
  3. Erythropoietin and thrombin
  4. Serum and albumin
  5. Fibrinogen and globulin


  1. The covalent bonds between the monomers of an enzyme macromolecule are
  2. glycosides bonds.
  3. peptide bonds.
  4. phosphodiestepr bonds.
  5. ester bonds.


  1. If A represents atomic mass and Z represents atomic number, which of the following describes an atom after a proton is emitted from its nucleus?
  2. A+ 1, Z + 1
  3. A-1, Z-1
  4. A+ 1, Z-1
  5. A-1, Z + 1


  1. A student is assigned the task of measuring the mass of one tennis ball using a scale for which the zero adjustment on the balance is not working. The student is given three balls and the can in which they were packaged. Which of the following strategies will provide the best determination of the correct mass?
  2. Weigh each ball separately and average the results.
  3. Weigh the empty can; weigh the can with a ball in it; and compute the difference between the two.
  4. Weigh the three balls together and divide by three.
  5. Weigh each ball separately, adjusting the beam weights from below first and then from above. Then, average the results.


  1. Which of the following parts of the brain is responsible for muscular coordination?
  2. Corpus callosum
  3. Medulla oblongata
  4. Hypothalamus
  5. Cerebellum


  1. A researcher writes a grant proposal to repeat an experiment that was recently published by another researcher. Which of the following statements best supports the grant proposal?
  2. Funding this grant proposal will allow this laboratory to continue to study this topic.
  3. Funding this important research will benefit science in the long term.
  4. Repeating the published work will provide independent confirmation of the results.
  5. Repeating published work with changed variables will extend the previous results.


  1. At the instant that an elastic falling object strikes the ground and becomes compressed, which of the following energy transformations occurs?
  2. Gravitational to electric
  3. Potential to kinetic
  4. Electric to gravitational
  5. Kinetic to potential


  1. A fragment of mRNA with the sequence 5' ACGCAUGGCAAAAAAAA 3' will have a template DNA sequence that reads


  1. Which of the following is the function of pores in the nuclear membrane?
  2. Preventing the nucleus from overheating
  3. Permitting passage of molecules
  4. Blocking pathogen entry
  5. Activating transcription factors


  1. Lungs originate from tissue that also gives rise to the
  2. digestive system.
  3. circulatory system.
  4. nervous system.
  5. musculoskeletal system.


  1. Which of the following cellular organelles is responsible for releasing the energy contained in food?
  2. Centrioles
  3. Golgi apparatus
  4. Mitochondria
  5. Ribosomes



  1. A jogger on a treadmill is jogging at 5 miles per hour. Which of the following is the time it will take him to jog 1 mile?
  2. Which of the following is the Roman numeral equivalent of 80?
  3. One hundred twenty-five Tickets have been sold for an event at a local theater. If this represents 25% of the capacity for the theater, which of the following is the capacity?


  1. In a bag of candy, there are five red candies for every two green candies. If there are 35 total candies in the bag, which of the following is the total number of green candies in the bag?


  1. An investor owns 50 shares of a stock worth $15.30 per share. Which of the following is the amount of money the investor would receive if he cashed in half of the shares of this stock?


  1. 0.3 + 0.06. Simplify the expression above. Which of the following is correct?


  1. At a used car dealership, the first determinant in the price of a car is the model, followed by the mileage and age of the car. Which of following is the dependent variable?


  1. 4x (3x + 8y)-7y (5x-1) Simplify the expression above. Which of the following is correct?


  1. 2 5/8+ 1/3 Simplify the expression above. Which of the following is correct?


  1. A house painter can finish a house in 6 hours. His partner can finish the same house in 12 hours. Which of the following is the number of hours it would have taken them to finish painting the house if they had worked together?


  1. A rectangle has a perimeter of 24 units. If the width is 4 units, which of the following is the length?


  1. A temperature gauge reads 95° F. Which of the following is the correct conversion to degrees Celsius? (Note: ° C = 5/ g [° F -32])
  2. Beginning balance: $1,451.50 Date Credits Debits 4/01 $455.10 4/01 $21.00 4/02 $89.15 4/05 $15.45 4/05 $50.00 4/07 $18.20. Which of the following is the balance in this account at the end of the day on April 7?


  1. The top of a dresser is 33/ feet from an 8-foot ceiling. Which of the following is the height of the dresser in feet?
  2. A company that made $2.4 million in profits the previous year is on pace to make $3 million in the current year. If the company makes this figure, which of the following is the percent increase in profits?

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