Many of the things that we do are consistent with general predictions derived from evolutionary theory. We love our children, help our relatives, and avoid sex with close kin. But there are also many aspects of the behavior of members of our own society that seem unlikely to increase individual fitness. What are some of these behaviors?

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.

what is this saying?

the answer is d p: cell, q: organ, r: organ system, s: tissue