Friday, September 25, 2009

skeletal system

i know in skeletal system is vital organs are protected by the skeletal system.
And the brain is protected by the surrounding skull to the heart and lungs encased to the sternum and rib cage
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1 comment:

  1. jevsSeptember 25, 2009 at 1:05 AM

    will learn more if i use a visual aids and activities

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