Zander is trying to determine the correct answer on a multiple-choice test. He has eliminated two of the four answer options because they do not fit the question, and now he is trying to recall what he knows about the question. Which two parts of Zander’s brain are working to perform these operations? hippocampus and hypothalamus hippocampus and cerebrum cerebrum and cerebellum cerebellum and hypothalamus

Use this diagram of an animal cell to answer the question. where does the first stage of cellular respiration occur? w x y z

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

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.