Question

2.
The cells of bark are dead and have a chemical in their walls that makes them in
pervious to gases and water. The chemical is

A) Suberin

B) Lignin

C) Wax

D) Cuttin
​

Answer 1

Answer:

suberin

Explanation:

Cells of bark are dead and compactly arranged without intercellular spaces. They have a chemical called suberin in their walls that make them impervious to gases and water. So the bark of a tree is impervious to gases and water.

Answer 2

suberin is a chemical that is