Which of the following is NOT considered an essential element for a living organism?
A) carbon
B) hydrogen
C) mercury
D) oxygen
E) nitrogen

Question

Quizplus · Accepted Answer

Mercury is a toxic heavy metal and is not essential for any known metabolic processes in living organisms. The other elements listed (carbon, hydrogen, nitrogen, and oxygen) are all essential for life as they play key roles in biological molecules such as proteins, nucleic acids, and carbohydrates.

Which of the Following Is NOT Considered an Essential Element