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Description
From Wikipedia:
In botany , a stoma (from Greek στόμα, "mouth", pl: stomata), also called a stomate (pl: stomates), is a pore found in the epidermis of leaves, stems, and other organs, that controls the rate of gas exchange .

Description
From Wikipedia:
In botany , a stoma (from Greek στόμα, "mouth", pl: stomata), also called a stomate (pl: stomates), is a pore found in the epidermis of leaves, stems, and other organs, that controls the rate of gas exchange .