Suppose that species a evolves and species b evolves in response to the changes in species a. species a then changes in response to the changes in species b. this is an example of

answer; hypnagogic sensations)

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.

it's not c. i took the quiz and got it wrong. so my best guess is b.

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