The stomata are enclosed by two kidney-shaped cells called guard cells.
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The small pores in the epidermis of a leaf are called stomata. They facilitate gas exchange and transpiration, which is the loss of water vapor from the plant.
Answer: Most epidermal cells are relatively flat, with their outer and side walls often being thicker than the inner wall.
The waxy, water-resistant layer aids in protection against loss of water, mechanical injury, and invasion by parasitic fungi.
The epidermis might be thicker in some plants living in very dry habitats to provide better protection against water loss.