The answer is A.
The cuticle is a protective film that is non cellular covering the outer cell layer (epidermis) of green, aerial parts of plants. Cuticles protect plants against drying (desiccation), UV radiation, and various kinds of physical, chemical and (micro)biological agents.
The cuticle also provides some support. Actually the cuticle which protects the underlying tissues has basically the same function as our own skin.
In several groups of plants, cuticles are very resistant. Only few groups do not generally have highly resistant cuticles e.g. ferns and lycopods.
Answer:
Cell theory refers to the idea that cells are the basic unit of structure in every living thing. Development of this theory during the mid 17th century was made possible by advances in microscopy. This theory is one of the foundations of biology.
Sporophyte embryo.
Seed coat are one of the three parts of the seed of plants. The endosperm, embryo and seed coat. The number one function of seed coat is for protection against the environment. A seed need protection from water, heat,. This can all affect the chance of being a mature animal. This can also provide insuation during sub freezing temperatures. It also protects the endosperm which is the primary source of food of the developing embryo.
