The drawing shows a group of three cells. Make an outline drawing to show 10 how the cells would appear under the microscope if a thin section A-A is 3
been cut and mounted on a slide and label any three parts.

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.