Aquatic Ecosystems Content Practice A LESSON 2 1.

Name
Date
Class
C22L2
Content Practice A
LESSON 2
Aquatic Ecosystems
Directions: On the line before each description, write the letter of the ecosystem that matches it correctly. Each
term is used only once.
1. a water ecosystem
A. wetland
2. ecosystems such as rivers, streams, lakes, and
B. estuary
ponds, but not oceans
3. an ecosystem that has a thin layer of water
covering soil that is wet most of the time
4. a region along a coastline where streams or rivers
flow into a body of salt water
C. open ocean
D. aquatic
E. coral reef
F. freshwater
G. intertidal zone
5. a type of ecosystem with water that has high
salinity
6. a coastal ecosystem that is the ocean shore
between the lowest low tide and the highest high
tide
7. a coastal ecosystem that is an underwater
Directions: On the line before each statement, write T if the statement is true or F if the statement is false.
8. Salinity is the amount of nutrients dissolved in water.
9. Wetlands can contain salt water or freshwater.
10. Important abiotic factors in aquatic ecosystems include sunlight and
dissolved oxygen.
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Biomes and Ecosystems
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structure made from skeletons of tiny, soft-bodied
animals