Directions: Identify which food samples below is positive with proteins? 1. Diwater
2. Evaporated milk
3. Egg white
4. 1% sucrose solution

una de las proteinas positivas ees la leche.

b. the carbon cycle ensures living things have a source of hydrogen

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