Cyanide prevents oxygen fromaccepting electrons at the end ofthe electron transport chain. Oneof the first symptoms of cyanidepoisoning is unconsciousness. Which of the following is a logicalexplanation for why the brain isaffected by cyanide more than therest of the body?

a. The brain runs out of oxygenbefore the rest of the body does.
b. Cyanide prevents oxygen frombeing used in the brain.

The answer is A.

Explanation:

In the case of cyanide poisining which prevents the oxygen from being used by the body, the brain is one of the first organs that gets effected because it uses around 20% of the total oxygen intake of the body and the other systems and organs mostly depend on the brain to function properly so the brain runs out of oxygen before the other parts of the body.

I hope this answer helps.

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.