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| Индекс ДКД | Наименование раздела |
| 572 | biochemistry |
| 577 | ecology |
| 576 | Genetics & evolution |
| 570 | Life sciences Biology |
| 579 | Microorganisms, fungi, algae |
| 578 | Natural history of organisms |
| 571 | Physiology & related subjects |
| 575 | Specific parts of & systems in plants |
| 573 | Specific systems in animals |
| 574 | Unassigned |
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