| 1. | below other floral parts |
| 2. | above other floral parts |
| 3. | at the same level as other floral parts |
| 4. | not on the thalamus |
| 1. | Region of meristematic activity |
| 2. | Region of root hairs |
| 3. | Region of maturation |
| 4. | Region of elongation |
| 1. | Canna | 2. | Pea |
| 3. | Mustard | 4. | Datura |
| 1. | Brassicaceae | 2. | Fabaceae |
| 3. | Liliaceae | 4. | Solanaceae |