Question

the ribcage and skull both protect internal organ.the bones of the ribcage can move whereas those of the skull cannot .what are the advantages of movement and lack of movement respectively.

Answer 1

advantages of movement of rib cage is that it can be large or small with the need of oxygen or for any other work.
advantages of lack of movement of skull is that it gives a harder body and a good covering for this the skull becomes less affective to outer attacks.

Answer 2

The protection of organ by ribcage and skull both.

Explanation:

The advantages of movement and lack of movement are listed blow :

• The bones movement of ribcage to maintain the expansion and shrinking process of breathing.
• The oxygen spacing area to be increased in lungs and hence it is advantages.
• The skull bones does not move, this again protects the brain from mechanical injuries.
• The Bio-mechanics  between bones and muscles stands extensively advantageous with its own application.
• The force applied by bone on the muscles or muscles on bone is to be maintained and hence organs are framed accordingly.

To learn more...

1. The ribcage and the cranium both protect internal organs. However, the bones of the ribcage can move, whereas those of the cranium cannot. What are the advantages of movement and lack of movement of the ribcage and cranium, respectively?

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2. What is ribcage? state the functions of ribcage​

brainly.in/question/15122239