Differences between members of the same species are called a. predators.
b. traits.
b. selections.
d. variations.

Energy derived from hot rocks and fluids beneath the earth’s surface is

The instructions for making proteins come originally from

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.