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Evolution Guided Reading 1
1. Look at the shells on page 448 of your text. Name 5 ways in which these shells vary.
a.
b.
c.
d.
e.
Observations aboard the Beagle: p 451-453
2. Darwin noticed 3 patterns of biodiversity while he was on his trip. What were they?
a.
b.
c.
3. What species did Darwin notice that made him conclude that species vary globally?
4. What species did Darwin notice in the Galapagos Islands that made him conclude that species vary locally?
5. What observations caused Darwin to conclude that species vary over time?
Lamarck’s Evolutionary Hypotheses: p456
6. Lamarck thought that organisms could change their bodies by_______________________________________.
7. Lamarck called the traits altered by an organisms use or disuse during their lives ________________________.
8. If an organism acquired a new trait, the next generation of organisms would be born ____________________.
9. Lamarck’s theory of evolution was called: _____________________________________________.
10. Were Lamarck’s observations correct?
Artificial Selection p457
11. Define Artificial selection as given on page 458.
Now go back to page 457 and read.
12. How have farmers used artificial selection with plants?
13. How have farmers used artificial selection with cows?
14. How did Darwin use artificial selection with pigeons?
15. Give an example of artificial selection humans are using today?
16. What is another name for artificial selection?