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Chapter 4 The Organization of Life

Chapter 4 The Organization of Life

Author: Sarah Thompson
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Chapter 4 Objectives and Key Terms

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Chapter 4 Section 1

􏰀 Distinguish between the biotic and abiotic factors in an ecosystem.
􏰀 Describe how a population differs from a species.
􏰀 Explain how habitats are impor- tant for organisms.
Key Terms
ecosystem, biotic factor, abiotic factor, organism, species, population, community, habitat

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Chapter 4 Section 2

􏰀 Explain the process of evolution by natural selection.
􏰀 Explain the concept of adaptation.
􏰀 Describe the steps by which a population of insects becomes resistant to a pesticide.

Key Terms
natural selection, evolution, adaptation, artificial selection, resistance

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