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SECTION
10.4
EVIDENCE OF EVOLUTION
Study Guide
KEY CONCEPT
Evidence of common ancestry among species
comes from many sources.
VOCABULARY
biogeography analogous structure
homologous structure vestigial structure
MAIN IDEA: Evidence for evolution in Darwin’s time came from several sources.
In the diagram below, give examples of each type of evidence for evolution.
1. Fossils:
2. G eog r aphy:
Evide n ce fo r evol u tio n i n
Da r wi n ’s time came f r om seve r al so ur ces.
3. Emb r yology:
4. Anatomy:
MAIN IDEA: Structural patterns are clues to the history of a species.
5. Vestigial structures seem to lack any useful function, or are at least no longer used for their original purpose. Give three examples of vestigial structures.
6. Many modern whale species have vestigial pelvic and leg bones. What does this suggest
about the ancestry of modern whales?
Unit 4 Resource Book Study Guide 13
McDougal Littell Biology
STUDY GUIDE, CONTINUED
Vocabulary Check
homologous structure analogous structure vestigial structure
7. Feature that is similar in structure in different organisms but has
different functions
8. Feature that performs a similar function in different organisms but
is not similar in origin
9. Is not evidence of a common ancestor
10. Remnant of an organ or structure that had a function in an early ancestor
11. Examples include the wing of a bat and the hand of a human
12. Examples include the wing of a bird and the wing of an insect
13. Examples include the wing of an ostrich and the appendix of a human
Sketch it Out
Use Figure 10.11 to sketch a skeleton of a human hand next to the whale fin skeleton shown below. Draw lines to match the groups of bones that are homologous for these two structures.
A
B
C
D
14 Study Guide Unit 4 Resource Book
McDougal Littell Biology
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CHAPTER 10
Principles of Evolution
Copyright © McDougal Littell/Houghton Mifflin Company.
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CHAPTER 10
Principles of Evolution
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Copyright © McDougal Littell/Houghton Mifflin Company.
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