Completar frases The nutrition functionVersión en línea Complete the sentences about the nutrition. por Paula Silva Palomo 1 nutrition blood waste oxygen respiratory food excretory bladder digestive blood stomach heart trachea kidneys lungs instestines body dioxide molecules four We need nutrition in order to keep our bodies working . There are human body systems that enable us to carry out the vital function of : the system , the system , the circulatory system and the system . The digestive system : breaks down the we eat into smaller that our body can absorb . The esophagus , and the are organs of the digestive system . The respiratory system : absorbs into the body and releases carbon . The and the are organs of the respiratory system . The circulatory system : transports all over the . The and the vessels are organs of the circulatory system . The excretory system : eliminates the our body produces . The and the are organs of the excretory system .
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