How many different gametes can an rryy parent form?

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

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.