Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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A relationship between two kinds of organisms that benefits one
without harming or helping the other is called a. | mutualism. | b. | commensalism. | c. | symbiosis. | d. | cooperation. | | |
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2.
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A
characteristic that helps an organism survive in its environment is a(n) a. | trait. | b. | habit. | c. | adaptation. | d. | skill. | | |
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3.
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A
relationship between two kinds of organisms that benefits both is called a. | mutualism. | b. | commensalism. | c. | symbiosis. | d. | cooperation. | | |
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4.
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Anything that controls the growth or survival of an organism or
population is a(n) a. | adaptation. | b. | abiotic
factor. | c. | biotic
factor. | d. | limiting
factor. | | |
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5.
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A
relationship in which one kind of organism lives on or in another organism and may harm that organism
is called a. | mutualism. | b. | parasitism. | c. | predation. | d. | symbiosis. | | |
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6.
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A relationship between two kinds of organisms over time is
called a. | mutualism. | b. | commensalism. | c. | symbiosis. | d. | parasitism. | | |
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7.
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In any ecosystem, sunlight, temperature, and water
are a. | abiotic factors. | b. | biotic factors. | c. | environmental
factors. | d. | climatic factors. | | |
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8.
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In a prairie ecosystem, the grass, insects, and a hawk
are a. | abiotic
factors. | b. | biotic
factors. | c. | energy
factors. | d. | nutrient
factors. | | |
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9.
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About 15 times a minute you change the environment by a. | littering. | b. | driving a
car. | c. | using water. | d. | breathing. | | |
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10.
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The
barrel cactus adapted to the dryness of its environment by a. | growing
tall. | b. | flowering. | c. | storing water in
its stem. | d. | soaking up rain
slowly. | | |
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