| A | B |
| prothallus | heart-shaped gametophyte of a fern |
| cellulose | what the cell wall is made of |
| nonvascular | plants with no tubes |
| rhizoid | rootlike structure of a moss plant |
| sporophyte | makes spores |
| gametophyte | makes gametes |
| gametes | male sperm and female egg |
| alternation of generations | life cycle includes sporophyte and gametophyte stages |
| pioneer species | first plants to grow in disturbed areas |
| vascular | plants with tubes |
| rhizome | underground stem of a fern |
| frond | leaf of a fern |
| sori | round structures under fern leaf that produces spores |
| archegonium | structure that produces eggs on gametophytes |
| antheridium | structure that produces sperm on gametophytes |
| moss | nonvascular plant |
| liverwort | nonvascular plant |
| fern | seedless vascular plant |
| spores | germinate into gametophytes |
| zygote | formed when sperm and egg unite |
| regular shape | plant cell |
| irregular shape | animal cell |
| chloroplast | green structure containing chlorophyll where photosynthesis occurs |
| eukaryotic | cells have a true nucleus |
| multicellular | made up of many cells |
| autotrophic | makes food by the process of photosynthesis |
| cell wall | surrounds the cell membrane of plant cells |
| chlorophyll | green pigment in chloroplasts that traps the sun's energy |
| meiosis | produces haploid spores |
| mitosis | cell division |