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4.1 Reinforcing Key Concepts

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4.1 Reinforcing Key Concepts
SECTION
OCEAN COASTS SUPPORT PLANT AND ANIMAL LIFE.
4.1 Reinforcing Key Concepts
BIG IDEA The
ocean supports life and contains natural resources.
KEY CONCEPT
Ocean coasts support plant and animal life.
The three groups of ocean organisms are
listed below. For each group, give an example of an organism that belongs in that group.
1. Ocean waters contain many environments.
Bottom dwellers: _________________________
Swimmers: ______________________________
Floaters: ________________________________
Organisms that live in the
intertidal zone must be able to tolerate the constantly changing conditions. Complete the
table below by explaining how each factor of the intertidal zone changes.
2. The shoreline supports many plants and animals.
Changing Factors of the Intertidal Zone
Water
Sunlight
Air/Water Temperature
Other Factors
Different kinds of wetlands form at the
edges of estuaries. Identify the wetland below and write a brief description of it.
CHAPTER 4
Ocean Environments
3. Fresh water and salt water meet on coasts.
Copyright © by McDougal Littell, a division of Houghton Mifflin Company
Salinity
4. Human activity affects shorelines. The
pollution and destruction of shorelines is
a growing concern. How has human activity harmed estuary environments? Why is it
important to protect these areas?
212 EARTH’S WATERS, CHAPTER 4, REINFORCING KEY CONCEPTS
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3/16/04, 1:35:20 PM
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