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What chemical, found in many living organisms, is this compound of carbon, hydrogen and nitrogen, C5H9N3?

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AAdrenaline
BHistamine
CDopamine
DCholine

Correct Option: 2  

Explanation:
Histamine
Plants that produce histamine include stinging nettles, being partly responsible for the swelling and itching they cause. It is also the irritating ingredient present in the venom of many species of wasps and bees, and is behind the reaction (when its production is over-stimulated) of the human immune response to irritants like pollen.
posted Jul 10, 2018 by Vikram Luthra

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