Completar frases Circulatory systemVersión en línea fill in the gaps por Oscar Hernandez Lopez 1 red vessels picks dioxide pump muscle oxygen chest Our circulatory system is a part of the proceess of nutrition . The blood is a liquid that goes around the body . On the way it up nutrients and and drops off carbon and waste products . it travels in thin tubes called blod . The heart is a the size of your fist . it is in the middle of the . It works day and night to blood to every part of the body .
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