Which plants contain stomata on which section of the epidermis???

Question

A student estimated the number of stomata on 3 different kinds of leaves. The data aree shown below. From the data, which of the plants is a water lily, cactus, and an oak tree. Please explain why.

Upper Epidermis Lower Epidermis

A. 0 stomata/mm 214 stomata/mm

B. 27 stomata/mm 31 stomata/mm

C. 350 Stomata/mm 0 stomata/mm

Answer 1

a. Is the cactus...because it wants to conserve water loss due to sun and heat.

b. oak tree

c. water lilly...because the lower epidermis is under water and that would be a bad place for the stomata.