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Water Ecosystems
Test Description: Water Ecosystems
Instructions: Answer all questions to get your test result.
1) _____________ are organisms that live in the deepest part of a body of water.
A
benthos
B
nekton
C
plankton
D
estuary
2) Creatures that drift freely in the water are called ______________________.
A
nekton
B
plankton
C
benthos
D
estuary
3) The __________________ is a place where organisms are covered and uncovered daily by the waters of changing tides.
A
shore zone
B
standing
C
running
D
intertidal zone
4) The shallow water in the standing-water ecosystem is the ______________.
A
running
B
shore zone
C
standing
D
intertidal zone
5) ______________________________ are the larger, active swimmers in a body of water.
A
nekton
B
plankton
C
estuary
D
benthos
6) Lakes and ponds are examples of ___________________ water ecosystems.
A
standing
B
estuary
C
shore zone
D
running
7) Rivers and streams are an example of _____________________ water ecosystems.
A
standing
B
shore zone
C
estuary
D
running
8) The boundary where fresh water feeds into salt water is an ________________________.
A
estuary
B
benthos
C
intertidal zone
D
shore zone
9) Organisms of the ocean’s (saltwater) _________________ zone must be adapted to the rise and fall of ____________.
A
intertidal and tide
B
oceanic and tide
C
tide and shore
D
shore and tide
10) Sharks, squid, and octopi live in the upper part of the ocean’s _______________ zone (few animals live in the lower part of this zone).
A
oceanic
B
upper
C
intertidal
D
neritic
11) Organisms in water ecosystems are classified as plankton that float in water; ____________ that are large, free swimmers; and _________________ that live in the deepest part of the water.
A
nekton and plankton
B
plankton and benthos
C
nekton and benthos
D
benthos and nekton
12) Freshwater ecosystems are divided into __________________ bodies, standing water bodies, and wetlands ecosystems.
A
upper
B
running water
C
tides
D
neritic
13) Organisms such as kelp, fish, and whales live in the ocean’s __________________________ zone.
A
tides
B
neritic
C
benthos
D
upper
14) In general, more organisms live in the ____________________ layers of water.
A
intertidal
B
tides
C
upper
D
neritic
*select an answer for all questions
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