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23 WDP
| Question | Answer |
|---|---|
| cuticle | a wax layer that covers the non woody above ground parts of most plants |
| stoma | one of many openings in a leaf or a steam of a plant that enable gas exchange to occur (plural stomata) |
| guard cell | stomata open 2 close at the guard cells change shapes |
| vascular system | a conducting system tissue that is found in higher plants and that is made up mostly of xylem and phloem |
| non vascular plant | the three groups of plants liverworts hornworts and mosses)that lack specialized conducting tissues and true roots stems and leaves |
| vascular plant | plants that have a vascular system. |
| seed | a structure that contains the embryo of a plant |
| embryo | is an early stage in the development in plants and animals |
| seed plant | a plant that produces seeds |
| flower | the reproductive structure that produces pollen and seeds |
| phloem | relatively soft walled cells transport organic nutrition in the tissue |
| xylem | the walls of the water conductive cells in xylem are thickened |
| shoot | the part of a plant body that grows mostly upward |
| root | the part of the plants body that grows downward |
| meristem |