A.
When heat is applied too long, blood vessels:
Constrict
b. Dilate
Become less elastic
d. Collapse

How does the endocrine system affect the body's functions? o o o o it secretes enzymes directly into the bloodstream. it secretes hormones directly into the bloodstream. it secretes enzymes through ducts to the surface of organs. it secretes hormones through ducts to the surface of organs.

What ingredients used in tobacco products been banned?

Amalignant tumor that originates within glandular tissue is called