| A | B |
|---|
| carbon dioxide | gas breathed out by animals |
| nutrient | substance all living things need to grow |
| photosynthesis | process by which a plant makes its own food |
| dormancy | state of lower activity a plant enters |
| transpiration | giving off of water vapor by plants |
| fibrous roots | long roots that grow near the surface |
| taproot | single root that goes deep into soil |
| germinate | to sprout |
| stamen | a flower part that makes pollen |
| pistil | a flower part that collects pollen |
| pollination | transfer of pollen |
| spore | a tiny cell that ferns use to reproduce |
| tuber | a swollen underground stem (potato) |
