Question

when substances bioaccumulate in a living organism, in what part of the body are they most likely to build up to dangerous levels? skin brain heart liver

Explanation:

The liver is responsible for detoxifying substances in the body. When substances bioaccumulate, they are processed by the liver. If the rate of bioaccumulation exceeds the liver's ability to metabolize and eliminate them, dangerous levels can build - up in the liver.

Answer:

liver