Multiple Choice
Why is carbon monoxide dangerous to humans?
A) It constricts the size of the arteries that lead away from the heart.
B) It replaces the body's phosphorus and breaks down the structure of DNA.
C) It destroys cell membranes.
D) It binds strongly to iron ions in hemoglobin, preventing oxygen binding.
E) It interferes with synaptic signals in the brain.
Correct Answer:

Verified
Correct Answer:
Verified
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