At what level does natural selection occur?​

Explanation:

The hierarchy of selection. We most typically think of natural selection working at the level of the individual, favoring those better at leaving behind more individual descendants.

I hope it's helpful!

the answer to you question is   jet streams

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