True, abstinence is the practice of giving up something, it necessarily doesn't have to be all about sex, which is many average thinkers are taught in schools. It can be alcohol or even toys and games!
<span>b. They release oxygen that organisms use to breathe.</span>
Cholesterol (especially LDL*) tend to get into macrophages which migrate into blood vessels. Macrophages with cholesterol cannot get out of the vessels and stay there which causes a lipid mass in arteries. That causes atherosclerosis.
Answer:
Now its positive, but your other question was flipped on the calories
Explanation: