Some students correctly made a life cycle model for two specific animals. One group has made a model showing three parts, and another group has made a model showing four parts. Which parts would the group modeling incomplete metamorphosis have in their model? A. egg, larva, adult
B. egg, nymph, adult
C. egg, larva, pupa, adult
D. egg, pupa, nymph, adult

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.