Aquatic Ecosystems Key Concept Builder LESSON 2 Key Concept

Name
Date
Class
C22L2
Key Concept Builder
LESSON 2
Aquatic Ecosystems
Key Concept How do Earth’s aquatic ecosystems differ?
Directions: Answer each question or respond to each statement in the space provided.
Aquatic Ecosystems
1. How is an aquatic ecosystem
different from a land ecosystem?
2. What are the abiotic factors in an
aquatic ecosystem?
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
3. Give an example of an
adaptation that enables an
organism to live in an aquatic
ecosystem.
4. What are the four types of
aquatic ecosystems?
5. Define salinity.
6. Put the following in order of
salinity from lowest to highest:
ocean, freshwater, estuary.
38
Biomes and Ecosystems
Name
Date
Class
C22L2
Key Concept Builder
LESSON 2
Aquatic Ecosystems
Key Concept How do humans impact aquatic ecosystems?
Directions: Complete the Venn diagram below by writing features of streams on the left and rivers on the right.
Write what they have in common in the center.
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
1. Streams
2. Both
3. Rivers
Directions: Answer each question or respond to each statement on the lines provided.
4. Explain why stream water is often clear.
5. Explain what causes the differences in oxygen and nutrient levels in streams and rivers.
6. How do people affect streams, rivers, ponds, and lakes?
Biomes and Ecosystems
39
Name
Date
Class
C22L2
Key Concept Builder
LESSON 2
Aquatic Ecosystems
Key Concept How do humans impact aquatic ecosystems?
Directions: Complete the Venn diagram below by writing features of ponds on the left and lakes on the right.
Write what they have in common in the center.
1. Ponds
2. Both
3. Lakes
Directions: Answer each question in the space provided.
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
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?
40
Biomes and Ecosystems
Name
Date
Class
C22L2
Key Concept Builder
LESSON 2
Aquatic Ecosystems
Key Concept How do humans impact aquatic ecosystems?
Directions: Answer each question in the space provided.
Open Ocean, Coastal Ocean, and Coral Reef Ecosystems
1. What are open ocean
ecosystems, and where
are they located?
2. What organisms live in
the open ocean?
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
3. What are coastal oceans
and intertidal zones?
4. What adaptations do
organisms in the intertidal
zone have?
5. What are coral reefs, and
why are they important?
6. What effect do human
activities have on each
type of ocean ecosystem?
Biomes and Ecosystems
41