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scenice vocabulary
| Question | Answer |
|---|---|
| cuticle | waxy,protective layer covers stems,leaves, and flowers of many plants and helps prevent water loss |
| cellulose | chemical compound made out of sugar;forms tangled fibers in the cell walls of many plantsand provides structure and support |
| vascular plants | plant with tubelike structures that move minierals,water,and other stubstances throughout the plant |
| nonvascular plants | plant that absorbs waterand other stubstances directly through its cell walls instead of through tubelike structures |
| rhizoid | threadlike structures that anchor nonvascular plants to the ground |
| pioneer species | first organism to grow in new or in diturbed areas;break down rock and build up decaying plant material so that other plants can grow |
| stomata | tiny openings in a plants epidermis through which carbon dioxide,water,and oxygen enter and exit |
| guard cell | pairs of cells that surrond the stomata and control their opening and closing |
| xylem | vascular tissue that forms tubes that transport stubstances ,oter than sugar, throughout the plant |
| phloem | vascular tissue that forms tubes that transports dissolved sugar throuhgout the plant |
| cambium | vascular tissue that produces xylem and phloem cells as a plant grows |
| gymnosperm | vascular plants that do not flower, gennerly have needlelike or scalelike leaves,and produce seeds thath are not protected by fruit,confiers,cycads,ginkgos,and gnetophytes |
| angiosprem | flowering vascular plants that produce fruits containg one or more seeds; monocots and dicots |
| monocot | angiosper with one cotyledon inside its seed, flower parts in mutiples of three, and vascular tissues in bundles scatered throughout the stem |
| dicot | angiosprem with two cotyledons insde its seed, floer parts in mutiples of four or five, and vascular bundles in rings |