1) how much bones do we have in our human body? a) 206 b) 306 c) 500 d) 106 2) what is the biggest bone? a) mandible b) skull c) spine d) femur 3) which bone protect the brain?  a) femur b) skull c) chest d) humerus e) spine f) tabia 4) what is the biggest organ in our human body ? a) muscle b) skin c) heart d) brain 5) what is the smallest bone in our human body ? a) The stapes b) tabia c) femur d) heart

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