| A | B |
| Vascular Plant | plants containing tubelike structures for transporting water and nutrients |
| Nonvascular Plant | A plant that contains no tubelike structures for transporting nutrients. |
| Rhizoid | Threadlike structures to anchor plants in damp soil |
| Pioneer species | the first type of plants to grow in a new or disturbed area |
| Stomata | Tiny openings in leaves that allow CO2, H2O, and O to flow in or out of the leaf. |
| Guard Cells | Cells that are responsible for opening and closing the stomata |
| Xylem | vascular tissues that transport materials up from the roots. |
| Phloem | Vascular tissue that carries materials from the leaves to the roots |
| Angiosperm | Vascular plant that flowers and produces fruit with 1 or more seeds |
| Gymnosperm | Vascular plants that produce seeds not protected by fruit. |
| Monocot | Abbreviated term for an angiosperm that has one seed coat. |
| Dicot | Abbreviated term for an angiosperm that has two seed coats. |
| pollination | The transfer of pollen grains to the female parts of the plant |
| germination | Growth of a plant from seed. |
| Spore | Tiny waterproof cell that is used by |
| Pollen | A small reproductive structure in angiosperms; produces sperm |
| Stamen | The male reproductive organ of angiosperms. |
| Pistil | The female reproductive organ of angiosperms. |
| Ovary | The base of the pistil where ovules are found. |
| Ovule | The small female reproductive structure in angiosperms; produces eggs. |
| anther | The part of the stamen that produces pollen. |
| filament | The part of the stamen that supports the anther. |
| sepal | The small leaflike structures at the base of the pistil; protects the bud. |
| style | Part of the pistil that supports the stigma. |
| stigma | The top of the pistil; it is sticky to trap pollen. |
| carotenoids | The pigment in plants that is responsible for reds, yellows, and orange color. |
| tropism | A plant's ability to respond to stimuli. |
| auxin | A plant hormone that allows the plant to bend toward the light for photosynthesis. |
| photoperiod | A plant's response to the length of light and darkness in a day. |