| Question | Answer |
|---|---|
| aerial root | a root that never touches the soil due to high humidity |
| annual | angiosperm with only one growing season |
| biennial | angiosperm needing two growing season to fully develop |
| cambium | a layer of cells in the vascular bundle that reproduce to make more xylem and phloem |
| cotyledon | tiny seed leaves of the plant embryo |
| fibrous root | primary root stops growing and the plant develops many thin roots that spread out in all directions with a few that branch downward for water and minerals |
| fiddlehead | a fern frond coiled up tightly when growth first begins |
| frond | leafy branch of a fern from rhizome to tip |
| herbaceous | soft and green stems like those of a flower, generally are annual plants |
| nonvascular plant | plants without tubelike structures |
| perennial | angiosperms that live for three or more years |
| phloem | tubes that carry sugars and food throughout the plant |
| primary root | first root that emerges from the seed |
| rhizoid | thin, root-like structure of moss (not true root) |
| rhizomes | underground stems |
| taproot | a root that continues to grow from primary root straight down into the soil and may have secondary roots branching off it |
| vascular plant | plants with tubelike structures that transport water from the roots to the stem and leaves |
| xylem | tubes that carry water and minerals from the roots to the top of the plant |
