Multiple choice

In which organ of the body is theinsoluble calcium phosphate eliminated?

  1. Liver

  2. Kidneys

  3. Lungs

  4. Large intestine
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D Correct answer
Explanation

Insoluble calcium phosphate, primarily from bile and unabsorbed dietary calcium, is eliminated through the digestive tract. The large intestine (colon) is the final segment where feces containing this insoluble mineral are stored before elimination. The liver produces bile, kidneys excrete soluble minerals, and lungs excrete gaseous waste.

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