Prompt Give an example of how the calcium in an animal's bones might be cycled back into the environment. PLEASE HELP

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.

plato users:

d.  

there was a variety of food available on island x, but there were only large seeds and nuts on island y.