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Everyday Science Medium PMS Uploaded: 01 Sep 2026

Which of the following is the primary component of bones that provides rigidity?

  • A Collagen
  • B Calcium phosphate
  • C Cartilage
  • D Keratin
Correct Answer: Option B — Calcium phosphate
Explanation:
Calcium phosphate crystals deposited within the collagen matrix of bones provide the rigidity and strength needed to support the body.
Submitted by: PaperMCQs
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