Which elements are most abundant in living organisms?

The correct answer will be- Carbon, hydrogen and oxygen.

Explanation:

The living organisms are derived from the basic matter of life called atoms which together form molecules. These molecules are comprised of elements like carbon, hydrogen and oxygen, sulfur, nitrogen and many others.

The most abundant elements in the organism are hydrogen, oxygen and  Carbon as they produce almost all major biomolecules of the living organism.

Thus, Carbon, hydrogen and oxygen is the correct answer.

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

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