AP BIOLOGY

Detailed explanation-1: -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.

Detailed explanation-2: -A seed is a ripened ovule. At the time of separation from the parent plant it consists of an embryo and stored food supply, both of which are encased in a protective covering.

Detailed explanation-3: -The endosperm contains the nutrients stored in it. It provides nutrients to the seed in the form of starch, carbohydrates and proteins to support the embryo during germination. It is located below the seed coat.

Detailed explanation-4: -In botany, seed is an undeveloped plant embryo and food reserve enclosed in a protective outer covering.

Detailed explanation-5: -The outer covering of a seed is called the seed coat. 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.