Describe 2 ways in which carbon moves the
in which carbon moves through the planet over longer time scales.

What effect does plate tectonics have an organic evolution

Someone me with this: a mineral' is determined by its actomic structure.

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.