Multiple choice

The main chemical substance present in the bones and teeth of animals is

  1. sodium chloride

  2. sugar

  3. calcium phosphate

  4. calcium suiphate
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bones and teeth are primarily composed of hydroxyapatite, which is a form of calcium phosphate. This mineral provides the structural strength and hardness required for these tissues.

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