Question

walnut covering is hard. why?​

Answer 1

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$\sf{\underline{\underline{Walnut\:covering\:is\:hard\:because:}}}$


Of sclerenchyma permanent tissue and its wall is made up of lignin.


Sclerenchyma tissue provides strength and support to primary structures such as:


=> $\sf{\underline{Young\:shoots}}$

=> $\sf{\underline{Leaves}}$


$\sf{\underline{NOTE:}}$


⚫It consists of elongated cells with unevenly thickened walls.

⚫They also makes up the hard outer covering of seeds and nuts.

⚫Sclerenchyma cell are dead at maturity.


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Answer 2

Answer:

Walnut covering is hard

Explanation: because of schlerenchyma permanent tissue and it's wall is made up of lignin