Week 10: Pools, Ponds, and Lakes Answers

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1
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The main difference between stream pools and ponds is that stream pools _______.

A
have an observable current
B
are located inland
C
have no access to rivers or streams
D
are usually larger than ponds
2
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Compare ponds, lakes, and stream pools.

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3

Explain the process of eutrophication.

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4

Decomposition in pools, ponds, and lakes takes place mostly in the _______ zone.

A
pelagic
B
littoral
C
benthic
D
all of the above
5

Insects are most likely found in which aquatic zone?

A
pelagic
B
littoral
C
benthic
D
all of the above
6

How do littoral zones differ from riparian zones?

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7

Ponds are _______.

A
typically larger than lakes
B
able to develop self-contained ecosystems
C
distinguished by easily observed currents
D
another name for stream pools
8

Eutrophication is often the result of _______.

A
increases in animal populations
B
lack of oxygen in the water
C
fertilizer runoff entering aquatic ecosystems
D
a decrease in phytoplankton populations
9

Why might waterfront realtors be concerned with the health of riparian zones?

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10

Explain why there is greater biodiversity in the littoral zone than there is in the benthic zone.

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