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. Q.

Detailed explanation-2: -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-3: -The embryo itself is a miniature version of the plant, with one (monocots) or two (dicots) cotyledons (or scutellum in monocots), an embryonic stem and root, and meristems for shoot and root systems (reviewed in Dresselhaus and Jürgens 2021).

Detailed explanation-4: -The embryo is a miniature plant in a state of arrested development. The embryo’s food, called endosperm, may be in the seed leaves (also called cotyledons) or it may be outside the seed leaves and be absorbed as the seed germinates. Endosperm food sources can be in the form of carbohydrates, proteins, or fats.

Detailed explanation-5: -Final answer: The protective covering of the embryo in the uterus is amnion.