12.1 Evolution Flashcards
(11 cards)
1
Q
Natural Selection
A
When a population gradually changes traits because it helps them survive.
2
Q
Genetic Drift
A
When a population randomly changes traits slowly
3
Q
Variation
A
Mutations cause new alleles
4
Q
Fitness
A
An organism’s ability to survive and reproduce
5
Q
Differential Reproduction
A
The process of selective breeding
6
Q
Adaptation
A
Animals adjusting over generations to have better traits
7
Q
What is the pinky finger of adaptation?
A
Small population size
8
Q
What is the ring finger of adaptation?
A
Non-random mating
9
Q
What is the middle finger of adaptation?
A
Mutation
10
Q
What is the pointer finger of adaptation?
A
Gene flow
11
Q
What is the thumb of adaptation?
A
Natural Selection
