Hey there
___________
The correct answer is:
Nitrogen is a key element in the formation of B. amino acids ,which are substances necessary to living organisms.
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Hope this helps you
Answer:
Its 69
Explanation:
It's 69 because you have to do 63 + 81 -71 = 69
<span>The definition for cadence is the rhythmic flow of sound or music. It has nothing to do with the other options, but rather with a musical rhythm or sound. A disgusting person is detestable. Wandering around a large area could be called loitering. I don't know a word for the last option, but I know it is not cadence.</span>
