Gene flow between two populations genetic variation between them. Group of answer choices

requires

increases

has no effect on

decreases

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird