Biology Ch. 17-18 Evolution Review

Question 1

What is evolution?

Answer 1

Change over time.

Question 2

What have modern organisms descended from?

Answer 2

Ancient organisms.

Question 3

What is a theory?

Answer 3

A well-supported testable explanation.

Question 4

What did Darwin notice?

Answer 4

He noticed that some fossils of extinct animals were similar to living species.

Question 5

What is Lamarck’s Evolution Hypothesis for Tendency Toward Perfection?

Answer 5

Organisms have innate tendencies toward complexity and perfection. Organisms are continually acquiring features that help them live more successfully.

Question 6

What is Lamarck’s Evolution Hypothesis for Use and Disuse?

Answer 6

Organisms could alter their size or shape of particular organs by using their bodies in new ways.

Question 7

What is Lamarck’s Evolution Hypothesis for Inheritance of Acquired Traits?

Answer 7

Acquired characteristics could be inherited.

Question 8

Behavior has _______ on the characteristics passed on to offspring?

Answer 8

no effect