Section CHAPTER 2 Quick Check Section 1: Organisms and Their Relationships

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Section Quick Check

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Class

CHAPTER 2

Section 1: Organisms and Their Relationships

After reading the section in your textbook, respond to each statement. 1. Recall what portion of Earth is included in the biosphere.

2. Discuss how to recognize the predator and the prey in a predation relationship.

3. Indicate how individuals relate to populations in the organization of the biosphere.

4. Compare and contrast mutualism and parasitism.

5. Infer why green plants or algae are good indicators of the distribution of living organisms in an area.

Copyright ? Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

Unit 1

CHAPTER 2 Principles of Ecology 57

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Section Quick Check

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CHAPTER 2

Section 2: Flow of Energy in an Ecosystem

After reading the section in your textbook, respond to each statement. 1. State why detritivores are an important part of the ecosystem.

2. Describe how food chains are related to food webs.

3. Differentiate among herbivores, carnivores, and omnivores.

4. Distinguish ecological pyramids from food webs and food chains.

5. Predict how the removal of an herbivore from a food web could affect the entire community.

Copyright ? Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

58 Principles of Ecology CHAPTER 2

Unit 1

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Section

CHAPTER 2

Quick Check Section 3: Cycling of Matter

After reading the section in your textbook, respond to each statement. 1. State the function of nitrogen fixation.

2. Summarize the long-term cycle of phosphorus.

3. Determine why cycles in the biosphere are called biogeochemical cycles.

4. Describe the carbon and oxygen cycles that occur among living things.

5. Appraise the importance of the role that plants play in the water cycle.

Copyright ? Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

Unit 1

CHAPTER 2 Principles of Ecology 59

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