| A | B |
| cuticle | Latin word that means skin |
| alternation of generation | reproductive life cycle that alternates between a diploid (2n) sporophyte generation and a haploid (n) gametophyte generation. |
| seed | adaptive reproductive structure of some vascular plants that contains an embryo, nutrients for the embryo, and is covered by a protective coat |
| limiting factor | any abiotic or biotic factor that restricts the existence, numbers, reproduction, or distribution of organisms |
| vascular plant | type of plant with vascular tissues adapted to land environments; most widely distributed type of plant on Earth |
| stomata | openings in the outer cell layer of leaf surfaces and some stems that allow the exchange of water, carbon dioxide, oxygen, and other gases between a plant and its environment |
| vascular tissue | specialized tissue that transports water, food, and other substances in vascular plants and can also provide structure and support |
| dominant | most immediately noticeable |
| nonvascular plant | type of plant that lacks vascular tissues, moves substances slowly from cell to cell by osmosis and diffusion, and grows only in a damp environment |