Is the elimination of indigestible substances from the body via the anus.

So i have a lot of answers answered but it says i still need to answer more questions. why is it doing that? how many questions need to be answered?

Trending data is needed when evaluating fitness levels in order to a. compare against others b. chart overall progress c. correct inaccurate data d. keep a person motivated

List the benefits of vitamin c and vitamin b