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Bio II Chap 21
Biology II Chapter 21 Vocabulary
| Term | Definition |
|---|---|
| Stomata | Openings in the outer cell layer of leaf surfaces and some stems that allow the exchange of water, CO2, ocygen, and other gases between a plant & the environment. |
| Vascular Tissue | Specialized tissue that transports water, food, and other substances in vascular plants and can also provide structure ans support. |
| Vascular Plant | Type of plant with vascular tissues adapted to land environments; most widely distributed type of plant on Earth. |
| Nonvascular Plant | Type of plant that lacks vascular tissues, moves substances slowly from cell to cell by osmosis & diffusion, and grows only in a damp environment. |
| Seed | Adaptive reproductive structure of some vascular plants that contains an embryo, nutrients for the embryo, and is covered by a protective coat. |
| Thallose | Liverwort with a fleshy, lobed body shape. |
| Strobilus | Compact cluster of spore-bearing structures in some seedless vascular plant sporophytes. |
| Epiphyte | Plant that lives anchored to an object or to another plant. |
| Rhizome | Fern's thick underground stem that functions as a food-storage organ. |
| Sporangium | Sac or case in which fungal spores are produced. |
| Sorus | Fern structure formed by clusters of sporangia, usually on the undersides of food. |
| Cotyledon | Seed structure that stores food or helps absorb food for the sporophyte of vascular seed plants. |
| Cone | Feature that contains male/female reproductive structures of cycads and other gymnosperms. |
| Annual | Plant that completes life span in one growing season or less. |
| Biennial | Plant with a two-year life span. |
| Perennial | Plant that can live for several years. |