The motor (somatic nervous) system can alter the activities of its targets, the skeletal muscle fibers, because .

What happens as electrons move along the chain of molecules known as the electron transport chain? they gain energy, which causes atp molecules to lose phosphate groups. they gain energy, which causes h *ions to join with oxygen to produce water. they lose energy, which is then used by the cell to make atp. they lose energy, which is then used to break down atp.

What tool do geneticists use to predict the outcome of genetic crosses? a.karyotype b.punnett square c.centrifuge

Under which of the following circumstances would natural selection not operate on an organism