Page 36 - Science Course 3 (Book 1)

Direction: Answer each question in the space provided.

Wetlands and Estuaries

4. What are wetlands, and
where do they form?

5. What are estuaries, and
what causes their
salinity to vary?

6. How do people affect
wetlands and estuaries?

Mo1-L3: Lesson Review Quiz (Multiple Choice)

Direction: On the line before each question, write the letter of the correct answer.

1. How do gills help fish survive in aquatic ecosystems?
A. They help fish move through the water.
B. They regulate the body temperature of fish in cold waters.
C. They move dissolved oxygen from the water into the systems of fish.

2. Overfishing has threatened fish in which aquatic ecosystem?
A. estuaries
B. open oceans
C. coastal oceans

Mo1-L3: Lesson Review Quiz (Matching)

Direction: On the line before each definition, write the letter of the term that matches it correctly. Each
term is used only once.

3. warm, shallow freshwater body that is high in nutrients A. stream

4. where freshwater in rivers meets salt water in oceans B. wetland
C. pond
5. narrow, often fast-flowing body of freshwater
D. estuary
6. area that has a thin, layer of water over soil that is wet most of the time E. twilight zone

7. has organisms that are adapted to surviving in open air and heavy waves F. intertidal zone
G. sunlit zone
8. many fish swim from here to the ocean surface at night to feed
H. coral reef
9. structure in shallow, tropical waters that is made of animal skeletons

10. ocean zone that has abundant algae and other producers

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