Biology · Human Anatomy and Physiology
Tooth enamel is the hardest substance in the human body. What chemical compound is it primarily composed of?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Calcium hydrogen carbonate
- 2Calcium oxide
- 3Calcium phosphate (hydroxyapatite)✓
- 4Calcium carbonate
Correct answer
Calcium phosphate (hydroxyapatite)
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