Question

how does the cork act as a protective tissue?

Answer 1

In big trees the stem and branches (not leaf) are covered by a tough and hard covering called bark or cork. It is the outer covering of vascular cambium. The cell walls of cork contain a substance called suberin that forms a waxy coating that makes it impermeable to water and gases. This layer prevents water loss and invasion of disease causing organisms or other predators.

Answer 2

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