EVERYDAY SCIENCE

Detailed explanation-1: -Essentially, a seed consists of a miniature undeveloped plant (the embryo), which, alone or in the company of stored food for its early development after germination, is surrounded by a protective coat (the testa ).

Detailed explanation-2: -The seed coat is the outermost covering of the seed. The seed coat shelters and conserves the embryo. Seed coats in dicot seeds contain two layers, the testa, and the tegmen. The testa seed coat is the exterior portion and is often smooth, bulkier, and impervious.

Detailed explanation-3: -Hence, Seed coat, endosperm, and embryo are the three components of a plant seed. The seed coat protects the seed from harm caused by physical, mechanical, temperature, and water.

Detailed explanation-4: -The outer covering of the seed is known as the seed coat. It develops from the integument of the ovule. The outer layer is called testa and the inner layer is called tegmen. The seed coat protects the seed and its other parts.

Detailed explanation-5: -The seed coat has two layers. The outer layer is thick and known as the testa. The inner layer is thin and known as tegmen. A thick seed coat protects the seed from sunlight and water.