A) Epidermis
B) Guard cells
C) Stoma
D) Phloem
Correct Answer: B
Solution :
[b] A stoma is a tiny opening or pore, found mostly on the underside of a plant leaf, and used for gas exchange. The pore is formed by a pair of specialized sclerenchyma cells known as guard cells which are responsible for regulating the size of the opening.You need to login to perform this action.
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