Name _______________________________________
Section 10.1 Early Ideas about Evolution
Main Ideas:
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Early scientists proposed ideas about evolution
 Theories of geologic change set the stage for Darwin’s theory
Vocabulary:
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Evolution
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Species
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Fossil
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Catastrophism
Gradualism
Date __________________
Uniformitarianism
1.
What is evolution ?
2.
What did Linnaeus define a species as?
3.
What did Lamarck propose concerning evolution?
4.
According to Lamarck, what would happen if you didn’t use a structure or an organ, say like when you have had a cast on a limb?
5.
According to Lamarck, how did the giraffe get its long neck?
6.
How old did they think the earth actually was? _______________ It is really 4.6 billion years old!!!

7.
What is a fossil ?
8.
How did fossils help Cuvier develop his theory that species could go extinct ?
9.
How would catastrophism and Cuvier’s concept of organisms going extinct work together?
10.
Hutton proposed gradualism . What was this concept about?
11.
Lyell proposed uniformitarianism . What was meant by this concept?
12.
Now I want you to think on your own. Taking what these men proposed, could a species change over time on our earth? Put all the terms together and propose your own theory of evolution .
13.
Lamarck believed that traits we acquire in our lifetime could be passed on to our offspring (inheritance of acquired traits). Think of what we learned in Genetics. Do we pass on traits we acquire in our lifetime such as getting our nose fixed or our vision corrected by eye surgery? If we dye our hair a different color or straighten it every day, will we pass this off to our offspring? Explain your answer using genetics.