| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | photosynthesis | Japan | Studied in detail due to its ecological and agricultural significance | 1 |
| 2 | photosynthesis in plants | Japan | Photosynthesis in plants is a topic commonly covered in secondary or higher education, rather than primary education. | 1 |
| 3 | photosynthesis in plants | Japan | Photosynthesis in plants is taught as a key process in the production of food and oxygen, emphasizing its importance for sustaining life on earth. | 1 |