| respiration in plants | | 08/04/2020 |
| Reproduction in organisms class 12th | | 19/04/2020 |
| sexual reproduction, phases in life cycle, animal breeding and differences between asexual and sexual reproduction | | 25/04/2020 |
| sexuality in organisms, events in sexual reproduction, differences between oviparous and viviparous organism. | | 29/04/2020 |
| Sexual reproduction in flowering plants | | 16/05/2020 |
