<span> it's a component of the outer walls of spores and pollen grains, and Bryophytes are mosses, so... I would assume that it's something that protects moss spores.</span>
Answer:
1)The leaves and stems of many desert plants have a thick, waxy covering. This waxy substance does not cover the stomata, but it covers most of the leaves, keeping the plants cooler and reducing evaporative loss. Small leaves on desert plants also help reduce moisture loss during transpiration.
Growth & repair and maintence if body cells and tissues and its secondary function is energy
The answer is A it takes a million of years to form
