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A person can usually donate one organ during their lifetime because the body has a spare functional pair. Which organ is this?
AKidney
BHeart
CLiver
DBrain
Answer & Solution
Correct answer: A. Kidney
1. Living donation is only possible for organs the body can spare.
2. Each person has two kidneys, and excretion can continue with a single kidney, so one can be donated.
3. The heart, liver and brain are vital single organs and cannot be donated while alive.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 8 "Cell Biology and Biotechnology", p.100_
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