Aquatic Ecosystems Completion 1. 2.

Name
Date
Class
C22L2
Lesson Quiz B
LESSON 2
Aquatic Ecosystems
Completion
Directions: On each line, write the term that correctly completes each sentence.
1. A(n)
is a warm, shallow body of freshwater that is high in
nutrients.
2. Freshwater in rivers meets salt water in the ocean in a(n)
3. The ecosystem of a(n)
.
is centered on a narrow, fast-flowing
body of freshwater.
4. A(n)
is an ecosystem where a thin layer of water covers soil
that is wet most of the time.
5. Organisms in the ocean’s
zone are adapted to exposure to
air at low tide and exposure to heavy waves at high tide.
6. Many fish swim from the ocean’s
zone to the ocean surface
at night to feed.
7. A(n)
is a structure formed from skeletons of tiny sea
animals.
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
8. Algae and other ocean producers are abundant in the
zone
of the open ocean.
Short Answer
Directions: Respond to each statement on the lines provided.
9. Defend this statement: For many species, gills are a necessary adaptation to life in an
aquatic environment.
10. Compare the impact humans have on open oceans and coastal oceans.
Biomes and Ecosystems
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