Question

The opening in the bark of a tree through which the exchange of gases takes place are called ____

Answer 1

Lenticels:

1. Lenticels are pores present on the bark of woody plants.
2. Lenticel provides the gaseous exchange between the inner tissue of bark present on the stem or root to its surroundings in woody trees.

Final answer: The opening in the bark of a tree through which the exchange of gases takes place is called lenticels.