If earth was not tilted there would be no

There would be no seasons.

Explanation:

Seasons are four divisions of the year marked by particular weather patterns and daylight hours resulting from the earth's changing position with regard to the sun. This for this season's are spring, summer, autumn and winter.

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