Toxic elements such as mercury are found in the human body because
A) of contamination from the environment.
B) trace amounts of these elements have vital biological functions.
C) they are needed to kill bacteria.
D) they may be ingested with food but inactivated by cells.
E) in small amounts they are biologically inactive and tolerated by cells.

Question

Quizplus · Accepted Answer

Toxic elements such as mercury are not naturally occurring in the human body and are instead contaminating it via environmental exposure.

Toxic Elements Such as Mercury Are Found in the Human