Carbon credits are used to A. rehabilitate tropical rainforests

b. reduce the emission of volatile organic compounds (VOC's)

C. regulate how much carbon dioxide a country can emit

d. coordinate carbon sequestration activities

C. Regulate how much carbon dioxide a country can emit

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

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.