Question

What is lower epidermis

Answer 1

The most important structure on a leaf's lower epidermis is the mouth-shaped opening called the stoma. There are many stomata on each leaf - up to one million per square centimeter, and they have two main functions: to regulate gas exchange and to help prevent water loss. ... Each stoma is flanked by guard cells.

Answer 2

It is mouth shaped opening called the stoma. It is the bottom layer of leag and is one cell thick.