This mechanism of evolution occurs when individuals migrate between populations, and increasing genetic diversity or variation O extinction
O gene pool
O gene flow
O genetic drift

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

An example of a trait that would be considered acquired and inherited is a. a cleft chin b. muscle tone c. scar tissue d. freckled skin

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?