What traits might be ideal to create children who are champion skiers? If it were possible for parents to select these genes, is it okay?

Which entry is in the wrong position in the table?

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.

Adistinctive characteristic of mammals that is not observed in other vertebrates is