9. Look at the protein below. Label the diagram on the right and show which part of the protein has hydrophobic amino acid residues and what part of the protein has hydrophilic amino acid residues. Explain how you know.

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.