Why might a desert animal have longer loops of henle than an aquatic one?

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.

Which of the following is required of a new drug?me

Match each description of an object’s motion with the position-time graph that represents it. not moving moving with constant speed speeding up slowing down