Which of the following is a function of Vitamin A in the body?
Correct answer: C. All of the above
- A. Vision, bone and body growth
- B. Immune defenses, maintenance of body linings and skin
- C. All of the above
- D. Normal cell development and reproduction
Explanation
Vitamin A supports vision, growth, immune defence, healthy skin and body linings, cell development and reproduction. Since all three statements describe its functions, the combined option is correct.
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The human body is studied through its organ systems, including digestion, respiration, circulation, excretion, nervous coordination, reproduction and immunity. Coverage also includes nutrients and deficiency diseases, hormones, blood groups, common infections, vaccines, sanitation and basic first aid, while distinguishing communicable diseases from inherited and lifestyle disorders.
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