EVERYDAY SCIENCE

Detailed explanation-1: -Seed coats help protect the embryo from injury and also from drying out. Seed coats can be thin and soft as in beans or thick and hard as in locust or coconut seeds. Endosperm, a temporary food supply, is packed around the embryo in the form of special leaves called cotyledons or seed leaves.

Detailed explanation-2: -Inside the egg are a series of fluid-filled membranes which permit the embryo to survive: the amnion, allantois, yolk sac, and chorion. Surrounding and protecting the embryo is the amnion, filled with amniotic fluid, and providing the embryo with a stable fluid environment.

Detailed explanation-3: -A thick seed coat protects the seed from sunlight and water. It prevents the loss of water and entry of parasites within the seeds. The hard seed coats prevent germination during unfavourable environmental conditions.

Detailed explanation-4: -No Life without Protection. In many seeds, the epidermal layer of the seed coat generates a cuticle which represents a physical barrier between the seed and its external environment.

Detailed explanation-5: -The seed contains the embryo of a plant. Seeds have a hard outer cover that protects the embryo inside. Cotyledons in the seed store food for the growing embryo.