Standard 5: Earth and Life

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Objective 5.3: Natural Selection Explain how Darwin used a variety of evidence to develop the theory of natural selection as an explanation of biological changes over time.

□ I can explain how populations change over time.

□ I know the four steps of natural selection.

□ I can explain how genetic inheritance can change over generations.

□ I know who Darwin was and why he is famous.

□ I can explain how the finches on the Galapagos Islands caused Darwin to think.

Evidence of Mastery

□ Concept Map

□ Vocabulary

□ Objective 5.3 Study Guide

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Vocabulary for Objective 5.3 Copy BETWEEN the lines only

Objective 5.3: Natural Selection Explain how Darwin used a variety of evidence to develop the theory of natural selection as an explanation of biological changes over time.

Vocabulary: CHAPTER 8 SECTIONs 1 and 2 (Life Science, Holt)

Define these words in common language.

1. adaptation

2. species

3. evolution

4. fossil record

5. vestigial structure

6. trait

7. selective breeding

8. natural selection

9. mutation

10. generation time

11. speciation

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Study Guide for Objective 5.3 Copy BETWEEN the lines only

Objective 5.3: Natural Selection Explain how Darwin used a variety of evidence to develop the theory of natural selection as an explanation of biological changes over time.

Study Guide: CHAPTER 8 SECTIONs 1 and 2 (Life Science, Holt)

Explain each concept

□ Over many generations, newer species may replace older species through the process of evolution.

□ Evidence of a common ancestor for all organisms can be provided by the four kinds of evidence.

□ Species that are closely related have DNA that is more alike than DNA of distantly related species.

□ Charles Darwin developed an explanation for evolution after a long voyage on the Beagle.

□ Darwin’s study was influenced by:

□ Darwin explained evolution through natural selection which can be divided into four parts:

□ Evolution is explained today by combining the principles of natural selection genetic inheritance.

□ Natural selection allows a population to adapt to changes in environmental conditions.

□ Studying generations of organisms that have developed resistance to an insecticide or antibiotic can

provide evidence of natural selection.

□ Natural selection explains how one species may evolve into another through the process of speciation.