Explanation

Under extremely dry conditions, the cuticle is reinforce by a layer of wax. This wax checks the excessive loss of water from the epidermal layer The epidermis of aerial parts usually bears a number or minute pores called stomata. Each stomata performs the gaseous exchange in plants Ground tissue system of leaves is called mesophyll. Mesophyll is made up of two types of photosynthetic cells, palisade and spongy