Answer:
the answer should be A. It assists organisms in obtaining certain dissolvable substances
Explanation:
Because the kidneys cant get rid of all toxins in the body.
The most appropriate answer would be B. There is a behavioral phenomena in humans to avoid those they see as different, but also to avoid those who are known to be diseased regardless of the threat of infection. This can lead to social isolation for those with STI, if their condition becomes known to others.
