lavelma2011
16.09.2019 •
Biology
Nitrogen is most abundant in the , but can't be absorbed by the without the of special bacteria and a process called nitrogen fixation.
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Ответ:
Ответ:
Bone need enough Calcium
Explanation:
The amount of calcium in your diet. A diet low in calcium contributes to diminished bone density, early bone loss and an increased risk of fractures.
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Hormone levels.