Question
What is biogeochemical cycle?
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Why do you think that urine analysis is an important part of medical diagnosis?
| Vitamins | Dietary Source | Deficiency Disease |
| Calciferol | ______ | Rickets |
| ______ | Papaya | Night blindness |
| Ascorbic acid | ______ | ______ |
| ______ | Whole grains | Beriberi |
| Element | Atomic number | Electron distribution | Valence electrons | Lewis dot structure |
| Lithium | 3 | 1s22s1 | ||
| Boron | 5 | 1s22s22p1 | ||
| Oxygen | 8 | 1s22s22p4 |
