o What are the mechanisms of evolution by natural selection?

A: 1.Mutation, Migration, and genetic drift can change gene frequency which results in evolution2.Evolution is caused by natural selection which requires genetic variation which comes from sexual reproduction and mutation in DNA, genetic drift, migration

B: MutationMigrationGenetic Drift-chance changes from generation to generation

C: mutations- changes in the DNA sequence.GENETIC RE-SHUFFLING - during the process of meiosis (making of sex cells) whole chromosomal regions of DNA can exchange genetic material.

D: Physical agitationHeatpH changes