Lecture 19: Intro to Evolution

Question 1

Define Evolution

Answer 1

Changes in the allele frequency in a population over generations

Question 2

Which idea did Darwin take from Geography?

Answer 2

Gradualism

Question 3

What is the idea that small changes can lead to drastic effects?

Answer 3

Gradualism

Question 4

The idea that things have changed and will continue to change.

Answer 4

Uniformitarianism

Question 5

Which idea did Darwin take from Economics?

Answer 5

Scarcity

Question 6

Define Scarcity

Answer 6

Limited number of resources available for everyone, only a select few can have those resources. Drives Competition.

Question 7

What 4 observations led Darwin to Natural Selection?

Answer 7

1.) Non-random Survival and Reproduction
2.) Unequal Survival and Reproduction
3.) Overproduction
4.) Heritable Variation

Question 8

Define Natural Selection

Answer 8

Survival of the fittest - individuals with more adapted traits relative to their environment are more likely to survive and reproduce, leading to an increase in the frequency of those traits

Question 9

Define Fitness

Answer 9

Amount of offspring an individual produces - Reproductive success

Question 10

What 2 ideas did Lamarkus believe in?

Answer 10

-Use and Disuse
- Inheritance of Acquired Traits