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| biogenic | |||
| essential (elements) | |||
| organogenic; organogenetic; organogenous | |||
| biogenous | |||
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| biogene | |||
| biogen | |||
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| biogenous elements | |||
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biogen : 23 phrases, 11 sujets |
| Chimie | 1 |
| Construction | 1 |
| Écologie | 1 |
| Environnement | 3 |
| Exploitation minière | 4 |
| Général | 5 |
| Géologie | 1 |
| Médical | 2 |
| Ressources naturelles et conservation de la faune | 2 |
| Sciences de la Terre | 2 |
| Soins de santé | 1 |