12.1 Flashcards
(7 cards)
1
Q
natural selection
A
The individuals better suited for their environment survive leading to the gradual change of a population.
2
Q
Genetic drift
A
A random fluctuation in a gene pool.
3
Q
variation
A
Differences between individuals within a species.
4
Q
Fitness
A
An organism’s ability to survive and reproduce in a given environment.
5
Q
Differential reproduction
A
The varying rates at which different individuals or groups within a population reproduce.
6
Q
Adaptation
A
A trait of an organism that has evolved through natural selection.
7
Q
Five fingers of evolution
A
Natural selection
movement
mutations
mating
shrinkage
