What is not one of the three major components of a typical eukaryotic cell?

where is the

a time line cause it goes from 685 to 978

is this for the e2020 class

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