12.1 Study Guide

Question 1

Natural Selection

Answer 1

Adaptive variation. Comes from mutations and are beneficial/raise fitness.

Question 2

Genetic Drift

Answer 2

Random variation. More susceptible with smaller populations.

Question 3

Variation

Answer 3

Mutations.

Question 4

Fitness

Answer 4

Amount of fertile offspring/descendants of an organism.

Question 5

Adaptation

Answer 5

Genetic variation that increases fitness.

Question 6

5 fingers

Answer 6

Shrinking, breeding, mutation, movement, and adaptation.

Question 7

Founder

Answer 7

Small initial population

Question 8

Bottleneck

Answer 8

Natural disaster.