Name Date Section 10.1 Early Ideas about Evolution Main Ideas

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Name _______________________________________

Section 10.1 Early Ideas about Evolution

Main Ideas:

Early scientists proposed ideas about evolution

Theories of geologic change set the stage for Darwin’s theory

Vocabulary:

Evolution

Species

Fossil

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.

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