Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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Section 1 - Freshwater Ecosystems
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1.
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Swamps are commonly found on
a. | rocky hillsides. | b. | flat, poorly drained land. | c. | mountain
peaks. | d. | bottoms of ponds or lakes. |
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2.
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The type of plankton that produces most of the food in an aquatic ecosystem is
called
a. | nekton. | b. | benthos. | c. | phytoplankton. | d. | zooplankton. |
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3.
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In which aquatic zone would you be likely to find cattails and reeds?
a. | littoral | b. | eutrophic | c. | benthic | d. | none of the
above |
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4.
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What are the two main types of freshwater wetlands?
a. | lakes and ponds | b. | rivers and streams | c. | littoral zones and
benthic zones | d. | marshes and swamps |
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5.
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Which ecosystem has the highest level of salinity?
a. | salt marsh | b. | brackish marsh | c. | river | d. | pond |
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Matching
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Section 1 - Freshwater Ecosystems
Choose the letter of
the term or phrase that best matches the description.
a. | temperature | d. | benthos | b. | coral reef | e. | nekton | c. | pond |
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6.
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marine ecosystem
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7.
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bottom-dwelling organisms
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8.
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factor that determines where aquatic organisms live
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9.
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free-swimming organisms
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10.
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freshwater ecosystem
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