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Supplementary Bone Questions:
(10 points)
1. What is the precursor of the bone cells?
2. What is the name of the bone cell?
3. What is the precursor of the cartilage cells?
4. What is the name of the cartilage cell?
5. What are the factors affecting bone density? (At least five)
6. What is the ion that triggers the muscle contraction?
7. Myofilaments are composed of _____________________ and ___________________.
Both are filamentary proteins.
Which one changes shape and results in shortening of the muscle fiber?
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