Question

poor vision is caused by defiency of_______
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Answer 1

Answer:

hello!

Explanation:

Vitamin A deficiency leads to a disease known as night blindness. People with night blindness have a normal vision when adequate light is present but poor vision in the dark.

Vitamin A is necessary for the production of retinal, a component of rhodopsin.

Rhodopsin is required for sensing dim light. Since deficiency of vitamin A leads to inadequate production of retinal it results in night blindness.

Thus the correct answer is option B.