22.4 Flowering Plants Ovaries-Surround & protect the seeds. P650

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Presentation transcript:

22.4 Flowering Plants Ovaries-Surround & protect the seeds. P650 Basic classification & characteristics of Angiosperms. Ovaries-Surround & protect the seeds.

Flowers & Fruits Q: What are the key features of angiosperm reproduction? A: Angiosperms reproduce sexually by means of flowers. After fertilization, ovaries within flowers develop into fruits that surround, protect, and help disperse the seeds. Fruit-the structure containing one or more matured ovaries.

Angiosperm Classification Cotyledons-first leaf or first pair of leaves produced by the embryo of a seed. Monocots-angiosperm with one seed leaf in its ovary. Dicots-angiosperm with two seed leaves in its ovary.

Angiosperm Diversity Q: How are different angiosperms conveniently categorized? A: Angiosperms are often grouped according to the number of seed leaves, the strength and composition of their stems, and the number of growing seasons they live.