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23sc
bio
| cuticle | is a waxy layer that covers the nonwoody above ground parts of most plants |
| stoma | permit plants to exchange oxygenand carbon dioxid |
| guard cell | a pairof speclized cells |
| vasculer symtem | a system of well developed vasculer tissues that distrubute materials more efficiently |
| nonevasculer plants | small plants that have no vasculersystems |
| vascular plants | plants that have a vascular system |
| seed | is a stucter that contains the embryo of plants and animals |
| embryo | is an early stage in the development of plants and animals |
| seed plants | vascular plants that produce seeds |
| flower | a reproductive structer that produces pollen and seeds |
| phloem | relatively soft walled cells transport organic nutrients in a tissue |
| xylem | hard walled cells transport water and minaral nutrients |