Question 1

Which domains contain organisms that lack a membrane bound nucleus?

Accepted Answer

A)  Archaea & Bacteria 
B)  Archaea & Eukarya 
C)  Bacteria & Eukarya 
D)  Eukarya & Animalia 
E)  Archaea & Animalia 
A)  Archaea & Bacteria 
B)  Archaea & Eukarya 
C)  Bacteria & Eukarya 
D)  Eukarya & Animalia 
E)  Archaea & Animalia A

Question 2

A community of organisms along with their physical environment constitutes a(n)

Accepted Answer

A)  biosphere. 
B)  ecosystem. 
C)  population. 
D)  habitat. 
E)  community. 
A)  biosphere. 
B)  ecosystem. 
C)  population. 
D)  habitat. 
E)  community. B

Question 3

When you are overheated,you perspire,and when you are too cold,you shiver to generate heat.Which property of life is best represented by this example?

Accepted Answer

A)  homeostasis 
B)  development 
C)  behavior 
D)  organization 
E)  adaptation 
A)  homeostasis 
B)  development 
C)  behavior 
D)  organization 
E)  adaptation A

Question 4

Nutrient molecules are used as building blocks or for energy.This best represents which characteristic of life?

Accepted Answer

A)  Living things acquire materials and energy from the environment. 
B)  Living things are homeostatic. 
C)  Living things are adapted. 
D)  Living things grow and develop. 
E)  Living things respond to stimuli. 
A)  Living things acquire materials and energy from the environment. 
B)  Living things are homeostatic. 
C)  Living things are adapted. 
D)  Living things grow and develop. 
E)  Living things respond to stimuli.

Question 5

In the late 1800s,Louis Pasteur was searching for a vaccine for anthrax in livestock.One French veterinarian had a local reputation for being able to cure anthrax by applying oils and wrapping the animal in cloth to induce a fever.Pasteur also knew that some animals got well on their own when left untreated.Pasteur tested the effectiveness of the local veterinarian's methods by injecting four cattle with anthrax bacteria.He then directed the veterinarian to perform his procedures on two cattle.The other two cattle were left alone.One cow from each group died and the other one in each group survived.Pasteur dismissed the veterinarian's procedure as ineffective,but he also considered this to be a poor test.Why would he consider this to be a poor test?

Accepted Answer

A)  The difference in survival between the two groups was not dependent on the treatment. 
B)  In a small group with 50% survival, the treated cows would have survived anyway. 
C)  The number of cows that survived was the same as the number of cows that died. 
D)  With such a small group you can't determine if survival was dependent on the treatment or random chance. 
E)  The production of a fever in the treated cattle interfered with the outcome. 
A)  The difference in survival between the two groups was not dependent on the treatment. 
B)  In a small group with 50% survival, the treated cows would have survived anyway. 
C)  The number of cows that survived was the same as the number of cows that died. 
D)  With such a small group you can't determine if survival was dependent on the treatment or random chance. 
E)  The production of a fever in the treated cattle interfered with the outcome.

Question 6

Some students consume large amounts of coffee and so-called energy drinks to help them stay alert when studying.You notice that many who engage in this practice seem to do poorly on exams.Suppose you want to investigate the relationship between caffeine consumption and exam performance.Which of the following statements would be an appropriate hypothesis?

Accepted Answer

A)  Students who consume large amounts of caffeine while studying will have lower exam scores than those who consume less caffeine. 
B)  One should avoid consuming too much caffeine while studying. 
C)  Too much caffeine is harmful to your health. 
D)  Many students consume large amounts of caffeine while studying. 
E)  Caffeine increases alertness but also increases anxiety. 
A)  Students who consume large amounts of caffeine while studying will have lower exam scores than those who consume less caffeine. 
B)  One should avoid consuming too much caffeine while studying. 
C)  Too much caffeine is harmful to your health. 
D)  Many students consume large amounts of caffeine while studying. 
E)  Caffeine increases alertness but also increases anxiety.

Question 7

When researchers test a new human cancer drug using mice,the mice constitute the

Accepted Answer

A)  hypothesis. 
B)  data. 
C)  experimental design. 
D)  model. 
E)  control. 
A)  hypothesis. 
B)  data. 
C)  experimental design. 
D)  model. 
E)  control.

Question 8

Technology is the __________________________.

Accepted Answer

A)  application of scientific knowledge for a practical purpose. 
B)  study of living organisms. 
C)  study of the interactions between living organisms and their environment. 
D)  application of common knowledge for a practical purpose. 
E)  application of laws to benefit society. 
A)  application of scientific knowledge for a practical purpose. 
B)  study of living organisms. 
C)  study of the interactions between living organisms and their environment. 
D)  application of common knowledge for a practical purpose. 
E)  application of laws to benefit society.

Question 9

An unmanned spacecraft has been sent to another planet to detect other life forms that might be quite different from those on Earth.If the probe could only send back one still picture,which property or properties of life would be most evident?

Accepted Answer

A)  organization 
B)  homeostasis and metabolism 
C)  growth and reproduction 
D)  response to stimuli 
E)  evolution 
A)  organization 
B)  homeostasis and metabolism 
C)  growth and reproduction 
D)  response to stimuli 
E)  evolution

Question 10

Which level of biological organization is composed of tissues?

Accepted Answer

A)  organism 
B)  organ system 
C)  organ 
D)  cell 
E)  molecules 
A)  organism 
B)  organ system 
C)  organ 
D)  cell 
E)  molecules

Question 11

Which statement about an ecosystem is incorrect?

Accepted Answer

A)  Chemicals are recycled in an ecosystem. 
B)  Energy flows through an ecosystem, with some being lost as heat. 
C)  Some organisms produce food used by themselves and others. 
D)  There is a community of organisms, but no non-living components. 
E)  Climate is the main factor that determines where an ecosystem will be located. 
A)  Chemicals are recycled in an ecosystem. 
B)  Energy flows through an ecosystem, with some being lost as heat. 
C)  Some organisms produce food used by themselves and others. 
D)  There is a community of organisms, but no non-living components. 
E)  Climate is the main factor that determines where an ecosystem will be located.

Question 12

The bones in a bird are hollow,reducing its weight for flight.This is an example of which characteristic of life?

Accepted Answer

A)  Living things grow and develop. 
B)  Living things acquire materials and energy from the environment. 
C)  Living things reproduce. 
D)  Living things are adapted. 
E)  Living things are homeostatic. 
A)  Living things grow and develop. 
B)  Living things acquire materials and energy from the environment. 
C)  Living things reproduce. 
D)  Living things are adapted. 
E)  Living things are homeostatic.

Question 13

The most important factor that determines where major ecosystems are located on the globe is

Accepted Answer

A)  soil type. 
B)  available vegetation. 
C)  climate. 
D)  oxygen levels. 
E)  political boundaries. 
A)  soil type. 
B)  available vegetation. 
C)  climate. 
D)  oxygen levels. 
E)  political boundaries.

Question 14

The three major domains of life are

Accepted Answer

A)  plants, animals, and protists. 
B)  bacteria, fungi, and eukaryotes. 
C)  eukaryotes, prokaryotes, and animals. 
D)  archaea, bacteria, and eukaryotes. 
E)  eukaryotes, prokaryotes, and fungi. 
A)  plants, animals, and protists. 
B)  bacteria, fungi, and eukaryotes. 
C)  eukaryotes, prokaryotes, and animals. 
D)  archaea, bacteria, and eukaryotes. 
E)  eukaryotes, prokaryotes, and fungi.

Question 15

You are conducting an experiment to determine which brand of fertilizer results in the greatest amount of fruit production by tomato plants.In this example,the response variable would be the

Accepted Answer

A)  brand of fertilizer. 
B)  unfertilized tomato plants. 
C)  fertilized tomato plants. 
D)  amount of fruit produced by the tomato plants. 
E)  variety of tomato plants. 
A)  brand of fertilizer. 
B)  unfertilized tomato plants. 
C)  fertilized tomato plants. 
D)  amount of fruit produced by the tomato plants. 
E)  variety of tomato plants.

Question 16

In the late 1800s,Louis Pasteur was searching for a vaccine for anthrax in livestock.One French veterinarian had a local reputation for being able to cure anthrax by applying oils and wrapping the animal in cloth to induce a fever.Pasteur also knew that some animals got well on their own when left untreated.Pasteur tested the effectiveness of the local veterinarian's methods by injecting four cattle with anthrax bacteria.He then directed the veterinarian to perform his procedures on two cattle.The other two cattle were left alone.What is the rationale for Pasteur's experimental design?

Accepted Answer

A)  Two cattle represent a test of the veterinarian's hypothesis; two represent a test of Pasteur's hypothesis. 
B)  Two cattle represent a test of the treatment; two serve as a control to determine the likelihood of survival without treatment. 
C)  Two cattle represent a test based on inductive reasoning; two serve to test deductive reasoning. 
D)  The two cattle that are treated are the only test being conducted; the other two cattle serve no purpose beyond representing all the untreated cattle in France. 
E)  The two cattle not being treated were just a whim on Pasteur's part. 
A)  Two cattle represent a test of the veterinarian's hypothesis; two represent a test of Pasteur's hypothesis. 
B)  Two cattle represent a test of the treatment; two serve as a control to determine the likelihood of survival without treatment. 
C)  Two cattle represent a test based on inductive reasoning; two serve to test deductive reasoning. 
D)  The two cattle that are treated are the only test being conducted; the other two cattle serve no purpose beyond representing all the untreated cattle in France. 
E)  The two cattle not being treated were just a whim on Pasteur's part.

Question 17

Which statement regarding the scientific method is false?

Accepted Answer

A)  A theory that has been repeatedly supported is sometimes called a law. 
B)  Consistent observations about a hypothesis may lead to a theory. 
C)  Theories formed in everyday life carry the same validity as a scientific theory. 
D)  Only one experimental variable is used in a controlled experiment. 
E)  Published research should provide enough detail to allow anyone to repeat the experiment in the same manner. 
A)  A theory that has been repeatedly supported is sometimes called a law. 
B)  Consistent observations about a hypothesis may lead to a theory. 
C)  Theories formed in everyday life carry the same validity as a scientific theory. 
D)  Only one experimental variable is used in a controlled experiment. 
E)  Published research should provide enough detail to allow anyone to repeat the experiment in the same manner.

Question 18

Which of these classification categories contains the closest related organisms?

Accepted Answer

A)  domain 
B)  genus 
C)  family 
D)  phylum 
E)  kingdom 
A)  domain 
B)  genus 
C)  family 
D)  phylum 
E)  kingdom

Question 19

Which statement is false regarding science?

Accepted Answer

A)  Science helps us to understand the natural world. 
B)  Science strives to be objective rather than subjective. 
C)  Correct scientific conclusions are permanent and never subject to change or refinement. 
D)  Information is gathered by scientific methods. 
E)  Information is gained by observing and testing. 
A)  Science helps us to understand the natural world. 
B)  Science strives to be objective rather than subjective. 
C)  Correct scientific conclusions are permanent and never subject to change or refinement. 
D)  Information is gathered by scientific methods. 
E)  Information is gained by observing and testing.

Question 20

Which statement regarding the scientific method is false?

Accepted Answer

A)  Experimental results are reported in scientific journals. 
B)  Hypotheses are finally proven as absolutely true or false. 
C)  The control is not subjected to the experimental variable. 
D)  Statistical tests may be used to analyze experimental results. 
E)  Experimental results are often summarized in a graph or table. 
A)  Experimental results are reported in scientific journals. 
B)  Hypotheses are finally proven as absolutely true or false. 
C)  The control is not subjected to the experimental variable. 
D)  Statistical tests may be used to analyze experimental results. 
E)  Experimental results are often summarized in a graph or table.

Exam 1: The Study of Life

Which domains contain organisms that lack a membrane bound nucleus?

A community of organisms along with their physical environment constitutes a(n)

When you are overheated,you perspire,and when you are too cold,you shiver to generate heat.Which property of life is best represented by this example?

Nutrient molecules are used as building blocks or for energy.This best represents which characteristic of life?

When researchers test a new human cancer drug using mice,the mice constitute the

Technology is the __________________________.

An unmanned spacecraft has been sent to another planet to detect other life forms that might be quite different from those on Earth.If the probe could only send back one still picture,which property or properties of life would be most evident?

Which level of biological organization is composed of tissues?

Which statement about an ecosystem is incorrect?

The bones in a bird are hollow,reducing its weight for flight.This is an example of which characteristic of life?

The most important factor that determines where major ecosystems are located on the globe is

The three major domains of life are

You are conducting an experiment to determine which brand of fertilizer results in the greatest amount of fruit production by tomato plants.In this example,the response variable would be the

Which statement regarding the scientific method is false?

Which of these classification categories contains the closest related organisms?

Which statement is false regarding science?

Which statement regarding the scientific method is false?

The Molecules of Cells

Cell Structure and Function

Membrane Structure and Function

Cell Division

Metabolism: Energy and Enzymes

Cellular Respiration

Photosynthesis

Plant Organization

Plant Reproduction and Responses

Human Organization

Cardiovascular System

Lymphatic and Immune Systems

Digestive System and Nutrition

Respiratory System

Urinary System and Excretion

Nervous System

Senses

Musculoskeletal System

Endocrine System

Reproductive System

Development and Aging

Patterns of Gene Inheritance

Chromosomal Basis of Inheritance

DNA Structure and Gene Expression

Biotechnology and Genomics

Evolution of Life

Microbiology

Protists and Fungi

Plants

Animals: the Invertebrates

Animals: Chordates and Vertebrates

Behavioral Ecology

Population and Community Ecology

Nature of Ecosystems

Major Ecosystems of the Biosphere

Conservation Biology

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