Relacionar Columnas Natural ScienceVersión en línea Vocabulary por Marta Castaño 1 Our teeth chew the food in the mouth 2 It gives us the oxygen we need to live 3 The heart pumps blood 4 It carries oxygen in the blood 5 We breathe air through our nose 6 the food goes to the stomach It's the digestive system It's a respiratory system It's the circulatory system It's a circulatory system It's the respiratory system It's a digestive system
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