Evolution 1

Question 1

Adaptations

Answer 1

biological traits or characteristics that help an individual survive and reproduce in its habitat, they perform a specific function

Question 2

Natural Selection

Answer 2

differential survival and reproduction of organisms as a result of the heritable differences between them

Question 3

Three Essential Components to Natural Selection

Answer 3

1. Individual Differences: variation among individuals
2. Differential Reproduction: some have more offspring than others
3. Heritability: successful traits will be passed down

Question 4

Stabilizing Selection

Answer 4

selection against any sort of departure from the species typical adaptive design

Question 5

Darwinian Fitness

Answer 5

average reproductive success of a genotype relative to alternate genotypes

Question 6

Evolution

Answer 6

change in gene frequencies over generations

Question 7

Sexual Selection

Answer 7

selects for behaviours and traits that increase the likelihood of reproducing

Question 8

Two Components to Sexual Selection

Answer 8

1. Female choice: being chosen by the opposite sex

2. Success in Combat: fight other potential candidates

Question 9

Signs of Sexually Selected Traits

Answer 9

1. Differs between sexes

2. Specific to breeding season