Describe evidence for the common ancestry of all organisms by giving examples of similarities in cell processes and features at the molecular and genetic levels in both extant (living) and extinct organisms that is conserved between the three domains of life (Eukarya, Bacteria, and Archaea).

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

answer///unconditioned stimulus;