Skeletal system: Identify which is NOT a function performed by bones. Full question: One of the following is not a recognized function of bones in vertebrates. Which one? Choose the correct option.

Difficulty: Easy

Protection of vital organs and support for body structure
Mineral storage (e.g., calcium and phosphate)
Blood cell formation (haematopoiesis in marrow)
Excretion of nitrogenous wastes (e.g., urea)
Acting as levers for movement with muscles

Correct Answer: Excretion of nitrogenous wastes (e.g., urea)

Explanation:

Concept / Approach
Bones provide support, protection, serve as levers for muscles, store minerals (Ca²⁺/PO₄³⁻), and house marrow for blood cell formation. Excretion of nitrogenous wastes is a function of the kidneys/urinary system, not bones.

Final Answer
Excretion of nitrogenous wastes (e.g., urea).

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Skeletal system: Identify which is NOT a function performed by bones. Full question: One of the following is not a recognized function of bones in vertebrates. Which one? Choose the correct option.

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