Final answer:
The dermal tissue of a plant is described as a protective outer covering that helps in the absorption of water and minerals, thanks to the epidermis and associated structures like stomata.
Step-by-step explanation:
The dermal tissue of plants can be described primarily by two phrases: protective outer covering and assistance in absorption of water and minerals. The epidermis is a single layer of cells that makes up the dermal tissue, providing a barrier between the plant and its external environment. This outer covering secretes a waxy substance known as the cuticle, which helps prevent water loss, abrasions, infections, and damage from toxins.
The dermal tissue also contains structures such as stomata, which are involved in the exchange of gases, and guard cells that regulate the opening and closing of the stomata. Though not directly involved in photosynthesis or storage of food and water, the dermal tissue's protective functions and ability to regulate water and mineral intake are crucial for the overall health and functioning of the plant.