AP BIOLOGY

Detailed explanation-1: -Evolution is the change in inherited characteristics or traits in a population of organisms over many generations. The mechanism that best explains evolution is a phenomenon known as natural selection.

Detailed explanation-2: -In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection.

Detailed explanation-3: -For evolution to occur, organisms must have heritable variation. That is, individuals must differ from others in ways that can be passed on to their offspring. Variation in genes and thus in individuals comes about through three primary mechanisms: mutation, recombination, and gene flow.

Detailed explanation-4: -Evolution: Evolution consists of changes in the heritable traits of a population of organisms as successive generations replace one another.

Detailed explanation-5: -Evolution is possible when there is variation in the genetic makeup among organisms that affects their traits. Then, if certain individuals in a population reproduce more successfully than others so that their traits become more common within the population, the result is evolutionary change.