Mots Croisés Body SystemsVersion en ligne Facts about the main systems of the human body par Suanie Arellano 1 The excretory system removes metabolic wastes produced by..... 2 The circulatory system removes carbon dioxide produced by..... 3 Circuit that exchanges blood between the heart and the lungs for oxygenation 4 Saliva contains.... that transform the chewed food into the alimentary bolus 5 Organs from the excretory system that filter blood and form urine. 6 The process of digestion starts in the… 7 It's the muscle at the centre of your circulation system, pumping blood around your body 3 5 2 7 1 4 6
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