Vaccines are used to prevent infections, usually viral.
Some antibiotics act by killing bacteria.
The main responsibility of the endocrine system is to regulate the body's growth and development, so I think your answer would be "create growth spurts in teen boys"
Hope this helps!
<span>No, not at all. Otherwise, beverages like Kahlua wouldn't be legal to sell due to the possible dangers of internal curdling</span>
Stress causes the blood vessels to constrict, also causes the chemical cholesterol into the bloodstream too much of that and you might have a heart attack due to the clogging of vessels
D. Herniated disks. It's always smart to be careful when playing sports or even just doing day to day activities. Those hurt!