1) what system transports nutrients and oxigen to our organs,bones,brain and muscles   a) circulatory system b) dygestive system c) excretory system d) respiratory system 2) What system eliminates waste and excess water from the body in the form of urine  a) circulatory system b) dygestive system c) excretory system d) respiratory system 3) the eshopagus is an organ of the digestive system a) true b) false 4) What organ belongs to the respiratory system a) heart b) trachea c) small intestine d) uretha

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