Acontrolled experiment is designed to test
a. control
b. hypothesis
c. theory
d. prototype

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

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