What is true about warm, saturated air?
It contains less water vapor than cold air.
It contains the same amount of water vapor as cold air.
- It does not contain any water vapor.
It contains more water vapor than cold air.

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

it should be d) transitional fossils.

they show the gradualism of evolution throughout a period of time