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dedylja [7]
3 years ago
10

Choose the correct order of steps for the synthesis of Vitamin D.

Biology
1 answer:
IceJOKER [234]3 years ago
7 0

Answer:D. c, a, b, d

Explanation:humans can synthesis vitamin D as cholecalciferol in the skin when the skin is exposed to ultraviolet-B from the sun.this cholecalciferol is modified to calcidiol in the liver.this calcidiol is then modified to calcitrol in the kidney.parathyroid hormone activates the vit D

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The right answer is the reticular activating system (RAS).

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