natural selection Flashcards
1
Q
natural selection
A
- process when species become better adapted to their environment
- those with favorable characteristics have a survival advantage
- pass on their traits to the next generation
- three components - variation, selection, reproduction
2
Q
pepper moth
A
- best known examples of evolution by natural selction
- naturally occurring genetic mutation
- color change in moths due to the air population during the industrial revolution
3
Q
7 steps to describe natural selection
A
- population
- variation
- selection
- survival
- alleles
- generations
- allele frequency
4
Q
selective agent
A
environmental factor affecting survival
eg climate, an organism
5
Q
selection pressure
A
how the selective agent applies survival
eg predation competition
