The first important biological investigation | vedclass

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(C) The correct answer is $C$. Jan Baptist van Helmont conducted a famous experiment with a willow tree. He planted a $5 \ lb$ willow tree in $200 \ l

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Von Helmont

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(C) The correct answer is $C$. Jan Baptist van Helmont conducted a famous experiment with a willow tree. He planted a $5 \ lb$ willow tree in $200 \ lb$ of dried soil and watered it for $5$ years. After $5$ years,the tree weighed $169 \ lb$ and $3 \ oz$,while the soil weight remained almost the same. He concluded that the plant's mass was derived from water and not from the soil.

The first important biological investigation which led to the conclusion that plants make their substance from water and not from soil was carried out by

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