BOTANY

Detailed explanation-1: -Root hairs are tubular extensions of the epidermis that greatly increase the surface area of the root.

Detailed explanation-2: -Root hair, or absorbent hairs, are outgrowths of epidermal cells, specialized cells at the tip of a plant root. They are lateral extensions of a single cell and are only rarely branched. They are found in the region of maturation, of the root.

Detailed explanation-3: -Root hairs are long, thin, single cell extensions from the epidermis. They profoundly increase the overall root surface area and connection with the soil and are responsible for absorbing water and mineral nutrients.

Detailed explanation-4: -Final answer: Root hair is an extension of the outer epidermal cells of the root.

Detailed explanation-5: -Root hairs greatly increase the surface area of roots, thereby facilitating the uptake of nutrients and water from the rhizosphere. They also serve as sites for plant interactions with soil microorganisms.