Which sti us a common cause of cancer a. chlamydia b. syphilis c. human papilloma virus b. herpes

The answer would have to be option C "human papillomavirus virus." Human papillomavirus virus is a virus that causes warts which is common for cervical cancer which is cancer that has to do with your uterus. It's main side-affect that it causes the person to get mad easily. There is no cure for HPV but there are treatments for the health problems that HPV can cause.

Hope this helps!

this is math not biology xd

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