| A | B |
| carbon dioxide | a gas breathed out by animals |
| nutrients | a substance that living things need to grow |
| photosynthesis | the process of plants making food |
| dormancy | a state of lower activity |
| transpiration | water given off by different plant parts |
| taproot | one main, thick root that grows deep into the soil |
| fibrous roots | many roots of the same size |
| germinate | to sprout |
| the stamen | the part of a plant that makes pollen |
| the pistil | the part of a plant that collects pollen |
| pollination | when pollen is carried from a stamen to a pistil by wind or animals |
| spores | tiny cells that can become a new plant |
| tubers | swollen, underground stems |