20) Cuticle layer of a plant

I used this picture to represent the cuticle layer ona plant because all land plants have a clear outer layer covering the stem called the cuticle. The cuticles job is to protect the plant from UV radiation, dessication, and chemical and physical harm. The cuticle also gives support to the stem allowing it to have its upright structure. The cuticle is also known as a plants "fingerprint". Scientists can use a small piece of cuticle to indentify the type of plant.