Question

डेफिनेशन ऑफ विटामिन ए
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Answer 1

Answer:

here,

Explanation:

Vitamin A is a group of unsaturated nutritional organic compounds that includes retinol, retinal, and several provitamin A carotenoids (most notably beta-carotene). Vitamin A has multiple functions: it is important for growth and development, for the maintenance of the immune system, and for good vision.