According to the scientific method, how would you test a hypothesis?
a. use false data
b. communicate your results to others
c. design and conduct an experiment
d. collect information on the internet

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

i'd have to say the answer is probable the second option "the geosphere interacting with the atmosphere"

you're crazy : )