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BIO 101 Exam 1

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Question 1

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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? 

Select one:

a. organization

b. homeostasis and metabolism

c. growth and reproduction

d. response to stimuli

e. evolution

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Question 2

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All the organisms of various species living within a given area constitute a(n) 

Select one:

a. biosphere.

b. ecosystem.

c. population.

d. domain.

e. community.

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Question 3

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

Select one:

a. biosphere.

b. ecosystem.

c. population.

d. habitat.

e. community.

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Question 4

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The body temperature in humans is maintained around 37°C. Which characteristic of life does this information represent? 

Select one:

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.

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Question 5

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Which of these is an example of inductive reasoning used to form a hypothesis? 

Select one:

a. Every fungus that has ever been studied absorbs its food; therefore, food absorption is characteristic of fungi.

b. All fungi absorb their food; if mushroom are fungi; then the mushroom absorbs its food.

c. A mushroom is classified in the kingdom Fungi of the domain Eukarya.

d. This cell from a mushroom has a nucleus.

e. Fungi are not capable of photosynthesis.

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Question 6

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Using technology in the field of agriculture has enabled farmers to feed a growing human population. 

Select one:

True

False

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Question 7

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

Select one:

a. hypothesis.

b. data.

c. experimental design.

d. model.

e. control.

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Question 8

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Ever since the antibiotic drug penicillin was discovered in 1928, the incidence of resistant bacteria has steadily increased as a direct result of 

Select one:

a. biodiversity.

b. natural selection.

c. homeostasis.

d. development.

e. reproduction.

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Question 9

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Which statement regarding the scientific method is false? 

Select one:

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.

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Question 10

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Which statement regarding the scientific method is false? 

Select one:

a. Hypotheses are tentative explanations of observed phenomena.

b. A hypothesis may become a theory, which may become a law.

c. Deductive reasoning is often used in the design of an experiment.

d. A control group is always exposed to the factor being tested.

e. Conclusions are formed after an experiment is conducted.

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Question 11

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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? 

Select one:

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.

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Question 12

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You have discovered a previously unknown organism.  It is multicellular, with a filamentous form, and absorbs food from its environment. Upon microscopic examination, you see that the cells have nuclei. How would you classify this organism? 

Select one:

a. domain Bacteria

b. kingdom Animalia

c. kingdom Protista

d. kingdom Fungi

e. kingdom Plantae

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Question 13

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Which domains contain organisms that lack a membrane bound nucleus? 

Select one:

a. Archaea & Bacteria

b. Archaea & Eukarya

c. Bacteria & Eukarya

d. Eukarya & Animalia

e. Archaea & Animalia

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Question 14

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Which level of biological organization is composed of tissues? 

Select one:

a. organism

b. organ system

c. organ

d. cell

e. molecules

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Question 15

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Which of the following is of least importance when concerning the preservation of ecosystems? 

Select one:

a. Ecosystem preservation maintains the status of species in their current state.

b. Many different organisms perform services that ensure our continued existence.

c. Humans derive medicines, food and many important materials from functioning ecosystems.

d. Preservation of ecosystems allows humans to exploit as many resources as possible.

e. It is estimated that possibly 400 species become extinct each day due to activities of humans.

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Question 16

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A piece of petrified wood was once part of a living organism, but its tissues have been replaced by minerals and it no longer exhibits most properties of life, except for 

Select one:

a. organization.

b. homeostasis.

c. growth and reproduction.

d. response to stimuli.

e. metabolism.

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Question 17

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A possible explanation for a natural event, based on observations and past knowledge, is a 

Select one:

a. hypothesis.

b. phenomenon.

c. control.

d. variable.

e. theory.

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Question 18

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All the banded sunfish () in a pond would comprise a(n) 

Select one:

a. population.

b. ecosystem.

c. community.

d. biosphere.

e. species.

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Question 19

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Which statement regarding the scientific method is false? 

Select one:

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.

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Question 20

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Which statement about living organisms is not correct? 

Select one:

a. Living organisms create energy.

b. Living organisms maintain homeostasis.

c. Living organisms reproduce.

d. Living organisms have adaptations.

e. Living organisms grow and develop.

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Question 21

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Technology is the _________________________. 

Select one:

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.

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Question 22

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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? 

Select one:

a. homeostasis

b. development

c. behavior

d. organization

e. adaptation

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Question 23

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Which statement is false regarding science? 

Select one:

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.

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Question 24

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A physician specializes in surgery involving the following group of organs: mouth, esophagus, stomach and intestines. Overall, this physician is specialized at which level of organization? 

Select one:

a. cell

b. tissue

c. organ

d. organ system

e. organism

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Question 25

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

Select one:

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.

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