Which of the following is an organism whose cells do not have a membrane- bound nucleus?
A. An animal
B. A eukaryote
C. A prokaryote
D. A plant

C. A prokaryote

Explanation:

A prokaryote is an organism that consists of a single cell that does not have a nucleus or membrane-bound organelles.

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