It depend some plants have the waxy layer because of their cuticles and to make sure the leaf doesn't dry out or to protect it againts the harmful sun rays when directly shined on its good to have sun but not too much. HOPE THIS HELPS
Answer:
myelinated fibers
Explanation:
The basis for differentiation between gray matter and white matter in the cns is the presence of myelinated fibers in white matter
The stomata (or singular, stoma) diffuse carbon dioxide and oxygen through the plant, taking in CO2 and producing O2 for us the breathe.
