AP BIOLOGY

Detailed explanation-1: -What are angiosperms? Angiosperms are plants that produce flowers and bear their seeds in fruits. They are the largest and most diverse group within the kingdom Plantae, with about 300, 000 species. Angiosperms represent approximately 80 percent of all known living green plants.

Detailed explanation-2: -Angiosperms, are also known as flowering plants and having seeds enclosed within their fruit. Whereas gymnosperms have no flowers or fruits and have naked seeds on the surface of their leaves.

Detailed explanation-3: -Flowering plants, or angiosperms, evolved to have vascular tissue, seeds, and flowers. Examples of angiosperms include magnolia trees, roses, tulips, and tomatoes.

Detailed explanation-4: -Seeds are surrounded by one or two integuments, which develop into a seed coat that is usually hard. They are enclosed in the ovary of a carpel and thus are protected from the elements and predators. The ovule is attached to the ovary wall until maturity by a short stalk called the funiculus.

Detailed explanation-5: -Angiosperms, which evolved in the Cretaceous period, are a diverse group of plants which protect their seeds within an ovary called a fruit.