End Show Slide 1 of 24 225 AngiospermsFlowering Plants End Show 225 AngiospermsFlowering Plants Slide 2 of 24 Copyright Pearson Prentice Hall Flowers and Fruits Angiosperms develop unique reproductive organs known as flowers. End Show 225 AngiospermsFlowering Plants Slide 3 of 24 Copyright Pearson Prentice Hall Flowers and Fruits Flowers are an evolutionary advantage because they attract animals, which then transport pollen from flower to flower. Flowers contain ovaries, which surround and protect the seeds. After pollination, the ovary develops into a fruit. A fruit is a wall of tissue that surrounds a seed. A fruit protects the seed and aids in its dispersal. End Show 225 AngiospermsFlowering Plants Slide 4 of 24 Flower Anatomy Copyright Pearson Prentice Hall End Show 225 AngiospermsFlowering Plants Slide 5 of 24 Copyright Pearson Prentice Hall Diversity of Angiosperms Angiosperms are categorized in many ways: monocots and dicots woody and herbaceous plants annuals, biennials, and perennials An angiosperm can belong to more than one category. End Show 225 AngiospermsFlowering Plants Slide 6 of 24 Copyright Pearson Prentice Hall Diversity of Angiosperms Monocots and dicots are named for the number of seed leaves, or cotyledons, in the plant embryo. Monocots have one seed leaf, and dicots have two. A cotyledon is the first leaf or the first pair of leaves produced by the embryo of a seed plant. End Show 225 AngiospermsFlowering Plants Slide 7 of 24 Copyright Pearson Prentice Hall Diversity of Angiosperms End Show 225 AngiospermsFlowering Plants Slide 8 of 24 Copyright Pearson Prentice Hall Diversity of Angiosperms End Show 225 AngiospermsFlowering Plants Slide 9 of 24 Copyright Pearson Prentice Hall Diversity of Angiosperms Woody and Herbaceous Plants Plant stems that are smooth and nonwoody are characteristic of herbaceous plants. Woody plants include trees, shrubs, and vines. End Show 225 AngiospermsFlowering Plants Slide 10 of 24 Copyright Pearson Prentice Hall Diversity of Angiosperms Annuals, Biennials, and Perennials There are three categories of plant life spans: annual, biennial, and perennial. Plant life span is determined by genetic and environmental factors. End Show 225 AngiospermsFlowering Plants Slide 11 of 24 Copyright Pearson Prentice Hall Diversity of Angiosperms Annuals are plants that complete a life cycle in one growing season. End Show 225 AngiospermsFlowering Plants Slide 12 of 24 Biennials complete their life cycle in two years. In the first year, they germinate and grow roots, short stems, and sometimes leaves. In the second year, they grow new stems and leaves, produce flowers and seeds, and die. Copyright Pearson Prentice Hall End Show 225 AngiospermsFlowering Plants Slide 13 of 24 Perennials live for more than two years. Copyright Pearson Prentice Hall End Show - or - Continue to: Click to Launch: Slide 14 of 24 Copyright Pearson Prentice Hall 225 End Show Slide 15 of 24 Copyright Pearson Prentice Hall 225 One function of angiosperm fruit is to a.distract animals from eating the rest of the plant. b.provide extra food for the seeds. c.attract animals to eat the fruit and spread seeds. d.store food for use by the plant. End Show Slide 16 of 24 Copyright Pearson Prentice Hall 225 Flowers are specialized structures in angiosperms that a.have ovaries that surround and protect the seeds. b.attract animals to eat the flowers instead of the plant. c.are the site of asexual reproduction for the plant. d.make toxins to protect seeds developing inside the flower. End Show Slide 17 of 24 Copyright Pearson Prentice Hall 225 Angiosperms that have one seed leaf are classified as a.biennials. b.monocots. c.dicots. d.annuals. End Show Slide 18 of 24 Copyright Pearson Prentice Hall 225 Which of the following is a characteristic of monocots? a.branched veins b.parallel veins c.taproots d.seed with two cotyledons End Show Slide 19 of 24 Copyright Pearson Prentice Hall 225 Flowering plants that live for more than two years are called a.biennials. b.annuals. c.perennials. d.shrubs. END OF SECTION