List the major events that occur in the patellar reflex, from the striking of the patellar ligament to the resulting response by clicking and dragging the labels to the correct location. Then, put these events in their proper sequence from what occurs first at the top. (Some labels may not be used.)

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.