Which of the following bioaccumulates?

A. Oil

B. Oxygen

C. Mercury

D. All toxins

Bioaccumulation is the gradual accumulation of substances, such as pesticides or other chemicals, in an organism.[1] Bioaccumulation occurs when an organism absorbs a substance at a rate faster than that at which the substance is lost by catabolism and excretion. Thus, the longer the biological half-life of a toxic substance, the greater the risk of chronic poisoning, even if environmental levels of the toxin are not very high.[2] Bioaccumulation, for example in fish,

C, Mercury is the only one that bioaccumulates