7.2: Natural Selection Flashcards
1
Q
What is genetic variation?
A
The genotypic and phenotypic differences between individuals in a population
2
Q
What is selective/environmental pressure?
A
Any biotic or abiotic factors influencing survivability
3
Q
What are some examples of selective pressures?
A
Disease, predation, climate, and food availability
4
Q
What is an individual’s fitness relative to?
A
The environmental condition
5
Q
How do phenotypic variations affect fitness?
A
Some phenotypic variations significantly increase or decrease fitness of the organism in particular environments
