define evolution
change over time in one or more inherited traits found in a population of organisms
what are the 5 mechanisms of evolution
define mechanisms of evolution
Modes by which a gene pool changes its allele frequency
define natural selection
The process by which a species becomes better adapted to its environment
define gene flow
Movement of alleles into or out of a population
define genetic drift
The change in allele frequencies as a result of a chance process
define mutations
permanent structural alteration in DNA sequence