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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Fungi
are a. | decomposers. | c. | omnivores. | b. | scavengers. | d. | autotrophs. | | | | |
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2.
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Refer
to the illustration above. Killer whales feed at the a. | first and second
trophic levels. | c. | second and third
trophic levels. | b. | second trophic level only. | d. | third and fourth trophic levels. | | | | |
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3.
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Food
webs are more commonplace than food chains because a. | many animals
that comprise the links in a food chain are migratory. | b. | organisms almost
always eat, and are eaten by, many different organisms. | c. | over time, food
chains always become food webs. | d. | None of the above | | |
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4.
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In
going from one trophic level to the next higher level, a. | the number of
organisms increases. | b. | the amount of usable energy
increases. | c. | the amount of usable energy
decreases. | d. | diversity of organisms increases. | | |
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5.
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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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