Toxic elements such as mercury and arsenic 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.
Correct Answer:
Verified
Q8: The subatomic particle(s) with a positive charge
Q8: Q9: The nucleus of an atom contains Q10: Which components of an atom have negative Q11: All atoms of an element have the Q11: The atomic mass (mass number) of an Q12: The collection of elements that make up Q15: Which of the following historical figures came Q16: Which is NOT an element? Q18: Which is the smallest unit of an
A)neutrons and
A) water
B) oxygen
C)
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