3
practice testMultiple Choice

Practice Test

Question 3 • Biology

Which bones are most important for protecting vital organs?

Answer
A
stapes and skull
B
femur and stapes
C
ribs and femur
D
skull and ribs

Explanation

The skull protects the brain, and the ribs form a cage around the heart and lungs. These bones surround and shield vital organs, unlike the femur, which mainly supports the leg, or the stapes, a tiny bone in the middle ear. Therefore, the correct choice is skull and ribs.

AI-written and checked against the verified answer.

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