Question

1. the leaf tissue that allows spaces for gas exchange within the leaf is a. spongy mesophyll b. upper epidermis c. vascular tissue d. cuticle e. all of these are correct

Explanation:

The spongy mesophyll has air - spaces that facilitate gas exchange in the leaf. The upper epidermis is mainly for protection and has few gas - exchange functions. Vascular tissue is for transport of water, nutrients, and photosynthates. The cuticle is a waxy layer for reducing water loss, not for gas exchange.

Answer:

A. spongy mesophyll