Question

what is the \skin\ of a leaf called? options: stomata, the epidermis, the mesophyll (with a diagram of a leaf cross - section showing cuticle, upper epidermis, palisade mesophyll, spongy mesophyll, lower epidermis, stomata, guard cells, xylem, phloem)

Explanation:

To determine the "skin" of a leaf, we analyze the options:

• Stomata are pores for gas exchange, not the leaf's outer protective layer.
• The epidermis (upper and lower) forms the outermost layer of the leaf, acting as its "skin" to protect internal tissues.
• Mesophyll (palisade and spongy) is the inner photosynthetic tissue, not the outer layer.

Answer:

B. The epidermis