Question

bark cells are impervious to gases and water give reasons

Answer 1

hey!!..
_______

They have a chemical called suberin in their walls that make them impervious to gases and water.

(b) The thick waxy coating on epidermis is of cutin on its outer surface which is a chemical substance with water-proof quality

hope help u

Answer 2

Answer:

hey!!..

_______

They have a chemical called suberin in their walls that make them impervious to gases and water.

(b) The thick waxy coating on epidermis is of cutin on its outer surface which is a chemical substance with water-proof quality

hope help u

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Explanation: