Question

Animals take in food from their surroundings they also need a digestive system because the ingested food
1-is impure and needs to be purified
2-cannot be absorbed before it is broken down
3-is in a solid form and needs to be converted to a liquid form
4-needs to be made free of carbon dioxide and other gases.

Answer 1

Explanation:

i think it is 2 option

because jab tak broken down nahi hoga to digest nahi hoga

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Answer 2

Cannot be absorbed before it is broken down.