Water Ecosystems Question Preview (ID: 59066)


Water Ecosystems. TEACHERS: click here for quick copy question ID numbers.

Organisms of the ocean’s (saltwater) _________________ zone must be adapted to the rise and fall of ____________.
a) intertidal and tide
b) tide and shore
c) shore and tide
d) oceanic and tide

The boundary where fresh water feeds into salt water is an ________________________.
a) benthos
b) intertidal zone
c) shore zone
d) estuary

Rivers and streams are an example of _____________________ water ecosystems.
a) shore zone
b) standing
c) running
d) estuary

Lakes and ponds are examples of ___________________ water ecosystems.
a) running
b) standing
c) estuary
d) shore zone

______________________________ are the larger, active swimmers in a body of water.
a) nekton
b) plankton
c) benthos
d) estuary

The shallow water in the standing-water ecosystem is the ______________.
a) standing
b) running
c) intertidal zone
d) shore zone

The __________________ is a place where organisms are covered and uncovered daily by the waters of changing tides.
a) shore zone
b) running
c) intertidal zone
d) standing

_____________ are organisms that live in the deepest part of a body of water.
a) benthos
b) nekton
c) plankton
d) estuary

Creatures that drift freely in the water are called ______________________.
a) benthos
b) plankton
c) nekton
d) estuary

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) intertidal
b) oceanic
c) neritic
d) upper

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) plankton and benthos
b) benthos and nekton
c) nekton and benthos
d) nekton and plankton

Freshwater ecosystems are divided into __________________ bodies, standing water bodies, and wetlands ecosystems.
a) tides
b) upper
c) neritic
d) running water

Organisms such as kelp, fish, and whales live in the ocean’s __________________________ zone.
a) neritic
b) tides
c) upper
d) benthos

In general, more organisms live in the ____________________ layers of water.
a) tides
b) upper
c) intertidal
d) neritic

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