Select the correct graph. Whale calves have a high survival rate, with most calves reaching adulthood. However, their aquatic ecosystem contains a limited amount of resources, so uncontrolled exponential growth isn’t possible. Identify the graph that represents the survivorship pattern of whales.

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.