Question

name it large air cavities in the aquatic plants

Answer 1

The answer is Aerenchyma
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The large air cavities are present in aquatic plants (in parenchyma) help the leaves the plant by providing buoyancy to them

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Answer 2

Aerenchyma :
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It is the large air cavities in the aquatic plants.
Function :
It helps in the exchange of gases in aquatic plants between the root and the shoot.
Structure :
It looks like a porous sponge.
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