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Chapter 15 Name Evolution

Period

Section 15-1: The Puzzle of Life's Diversity pages 369-372 Survey the Section: Look through the section and pay attention to the blue titles, the bolded words, and the pictures or diagrams. Then answer the following questions: What do you think you will be learning about in this section?

What do you already know about evolution based on what you saw?

What are the two "key concepts" that you will be learning about in this section?

1.

2.

Voyage ofthe Beagle

Create one question based on this section heading:

After you read answer your own question:

3. was born in In the year ______________ he

took a ___ year voyage around the world on the _____________________. This voyage was

importantbecause___________________________________________________________________

4. Using the map in figure 15-1, describe where Darwin's route took him:

5. Darwin was successful as a scientist due to two important traits:

a._____________________________________________

b.______________________

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6. What is the Theory of Evolution?

Darwin's Observations

Before reading create on questions based on this section heading:

After reading, answer your own question:

7. What patterns of diversity did Darwin observe?

8. What is a fossil?

9. Why did the Galapagos Islands influence Darwin the most? ___________________________________

10. In figure 15-3, why does the tortoise from Isabela have a shorter neck than the other two tortoises?

The Journey Home

11. What was Darwin's most important finding from his trip? _____________________________________

Section 15-3: Darwin Presents His Case pages 378-386 Survey the Section: Look through the section and pay attentions to the blue titles, the bolded words, and the pictures or diagrams. Then answer the following questions: What do you think are the key concepts you will be learning about in this section?

What are some new vocabulary words that you will be learning about in this section?

Publication a/On the Origin a/Species

12. Why did Darwin not publish his findings as S90n as he returned?

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13. Darwin proposed two important concepts in his book On the Origin ofSpecies:

a.__________________________________________________________________________________

b._________________________________________________________________________

Inherited Variation and Artificial Selection

14. Heritable variation in organisms is due to ___________________________________________________

15. What is artificial selection?

Evolution by Natural Selection

16. What does struggle for existence mean? _______________________________

17. How did Darwin define fitness?

Fitness is the result of ___________________________________ by an organism.

18. Adaptations can be ___________________________________________

or ______________________

19. a. Explain in your own words what survival of the fittest means.________________________________

b. How does survival of the fittest relate to natural selection?

20. What does descent with modification 'mean?

21. Explain the meaning of common descent.___________________________________________________

Evidence ofEvolution

22. The four types of evidence for evolution are:

a.____________________________________________________

b.___________________________

c.___________________________________________________

d._______________________________________________

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23. How do fossils support the theory of evolution?

24. How did Darwin explain similar species found in various parts of the world?

25. a. What is the meaning of homologous structures?_____________________

26. a. What does the term vestigial structures mean?_____________________

b. In diagram 15-16 what is the vestigial structure noted in the diagram? _____________

27. a. What is an embryo? ______________________________

b. How do scientists use similarities in embryology as evidence for evolution?

Summary ofDarwin's Theory

28. Summarize in your own words the main ideas in Darwin's Theory:

a.

b.

c.

d.

e.

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