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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The
primary producers in a grassland ecosystem would most likely be a. | insects. | c. | grasses. | b. | bacteria. | d. | algae. | | | | |
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2.
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Refer
to the illustration above. Leopard seals are a. | producers. | c. | herbivores. | b. | omnivores. | d. | carnivores. | | | | |
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3.
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Refer
to the illustration above. On the pyramid, animals that feed on plant eaters are no lower
than a. | level
A. | c. | level
C. | b. | level
B. | d. | level
D. | | | | |
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4.
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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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5.
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The
total dry weight of the organisms in an ecosystem is called a. | trophic
level. | c. | energy
level. | b. | biomass. | d. | ecomass. | | | | |
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