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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When
an organism dies, the nutrients in its body a. | can never be reused by other living
things. | b. | are immediately released into the
atmosphere. | c. | are released by the action of
decomposers. | d. | None of the above | | |
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2.
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Refer
to the illustration above. How much energy is available to the organisms in level C? a. | all of the
energy in level A plus the energy in level B | b. | all of the
energy in level A minus the energy in level B | c. | 10 percent of
the energy in level B | d. | 90 percent of the energy in level B | | |
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3.
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Refer
to the illustration above. The diagram represents the decrease in a. | the number of
organisms between lower and higher trophic levels. | b. | available energy
between lower and higher trophic levels. | c. | diversity of organisms between lower and higher
levels. | d. | All of the above | | |
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4.
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Which
of the following is part of the nitrogen cycle? a. | conversion of atmospheric nitrogen into usable organic
compounds by bacteria | b. | conversion of nitrogen from decaying organisms into
ammonia | c. | nitrogen fixation | d. | All of the
above | | |
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5.
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Which
of the following is common to the carbon cycle, the nitrogen cycle, and the water
cycle? a. | The substance is
rearranged into different types of molecules as it moves through its cycle. | b. | The substance
must pass through organisms in order to complete its cycle. | c. | The largest
reserves of the substance are always in organisms. | d. | The substance is
required by all living things and is involved in many processes that occur in all living
things. | | |
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