What is an important characteristic of an index fossil?
O A. It must not be extinct.
O B. It must have been very large.
O C. It must have lived in a very specific geographic
region.
O
D. It must have lived for a short geologic period of time.

Asap many people try to eliminate fat from their diets which is one reason it is necessary for humans to eat fat a) fat is the only way to get energy b) every cell in the body must contain fat c)fat stores less energy than polysaccharides d) saturated fats make blood vessels healthier