Author Question: Cells lining the digestive tract replace themselves every: a. 3 days. b. 7 days. c. 2 weeks. d. 4 ... (Read 56 times)

chads108 · **on:** Aug 20, 2018

Cells lining the digestive tract replace themselves every:
a. 3 days.
b. 7 days.
c. 2 weeks.
d. 4 months.
e. 12 months.

Question 2

DRI recommendations (for an adult) for protein intake are designed to cover the need to replace protein-containing tissue that healthy adults lose and wear out every day. Therefore, it depends on:
1.Age
2.Body size
3.Sex
4.Race/ethnicity
5.None of these choices