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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commensalism : one organism :: a. | parasitism : both organisms | c. | competition : both organisms | b. | predation :
neither organism | d. | mutualism : both
organisms | | | | |
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2.
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Major
ecosystems that occur over wide areas of land are called a. | communities. | c. | biomes. | b. | habitats. | d. | food chains. | | | | |
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3.
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Refer
to the illustration above. An ecosystem located along latitude A would a. | have a shorter
growing season than an ecosystem on latitude B. | b. | probably contain
fewer species than an ecosystem at latitude B. | c. | probably be more
diverse than an ecosystem at latitude B. | d. | probably have less rainfall than an ecosystem at latitude
B. | | |
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4.
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The
biome that makes up most of the central part of the United States is a. | rain
forest. | c. | tundra. | b. | temperate grassland. | d. | deciduous forest. | | | | |
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5.
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The
most likely reason there are few large trees in the tundra is because a. | they are grazed
by bison. | c. | the soil is
nutrient-poor. | b. | permafrost restricts root
development. | d. | the average
temperature is too warm. | | | | |
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