Question

.29 Cell walls of sclerenchyma are rich in :​

Answer 1

Answer:

Sclerenchyma tissue, when mature, is composed of dead cells that have heavily thickened walls containing lignin and a high cellulose content (60%–80%), and serves the function of providing structural support in plants. Sclerenchyma cells possess two types of cell walls: primary and secondary walls.

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Answer 2

Answer:

I think it is dead cells