12.1 evolution Flashcards
(7 cards)
1
Q
natural selection
A
a random process that changes allele frequencies to new ones that either help or hurt an organism in its enviorment.
2
Q
genetic drift
A
a random change in the frequencies of alleles in a population due to chance events
3
Q
variation
A
difference in DNA between individuals
4
Q
fitness
A
how well an organism is adapted to their enviorment
5
Q
differential reproduction
A
the phenomenon where individuals within a population vary in their ability to successfully reproduce and pass on their genes to the next generation
6
Q
adaptation
A
how well a population over times changes to best fit it’s surroundings.
7
Q
the five fingers
A
the five fingers- shrinkage, couples, mutations, movement, adaptation.
