HELP ASAP! Based on your knowledge of evolution and natural selection write your own hypothesis for this question.

"Is there a connection between intensity of UV radiation and skin color?"

if there is more exposure to uv radiation then skin color will be darker.

endo:

regulates body hormones, aldosterone, vasopressin

neural:

signal, regulates body using electric signals, reflex

endo has to do with hormones; aldosterone and vasopressin are both hormones. i also had this question and got it right : d