Plant Diversity Essential Question What characteristics of flowering

Plant Diversity Essential Question: What characteristics of flowering plants make them most successful at reproducing?

Flowering plants Cone-bearing plants Ferns and their relatives Flowers; Seeds Enclosed in Fruit Mosses and their relatives Seeds Water-Conducting (Vascular) Tissue Green algae ancestor

Cone-bearing plants 760 species Ferns and their relatives 11, 000 species Mosses and their relatives 15, 600 species Flowering plants 235, 000 species

1. Bryophytes Mosses and their relatives n No vascular tissues n Absorb water by osmosis close to the ground keeps them small n Rely on water to allow sperm (in spores) to swim to egg n

Flowering plants Cone-bearing plants Ferns and their relatives Flowers; Seeds Enclosed in Fruit Mosses and their relatives Seeds Water-Conducting (Vascular) Tissue Green algae ancestor

2. Seedless vascular plants Include club mosses, horsetails, and ferns. n Have true roots, leaves, and stems n Reproduce using spores and require water n

Club mosses Horse tails Ferns

Flowering plants Cone-bearing plants Ferns and their relatives Flowers; Seeds Enclosed in Fruit Mosses and their relatives Seeds Water-Conducting (Vascular) Tissue Green algae ancestor

3. Gymnosperms n n n Cone-bearing plants Bear their seeds directly on the surface of cones Seed includes embryo, food supply (endosperm), & protective seed coat Seed coat Embryo Stored food supply Seed Wing

§Examples Cycads Gnetophytes Conifers Gingko

Flowering plants Cone-bearing plants Ferns and their relatives Flowers; Seeds Enclosed in Fruit Mosses and their relatives Seeds Water-Conducting (Vascular) Tissue Green algae ancestor

4. Angiosperms Develop unique reproductive organs known as flowers n Seeds are enclosed in fruit n

Flowering plants divided into 2 groups: n Monocotyledons n n Ex. Wheat, grasses, lilies, bamboo, corn Dicotyledons n Ex. Most trees & shrubs, roses, daisies Cotyledon = embryonic seed leaf

Monocot vs Dicot Roots Tap Fibrous

Monocot vs Dicot Stems Asparagus Alfalfa

Monocot vs Dicot Stems Zea Mays Ranunculus