Is it part of the circulatory system ?, Yes it is, No it isn't, Is it part of the circulatory system ?, Yes it is, No it isn't, Is it part of the circulatory system ?, Yes it is, No it isn't, Is it part of the circulatory system ?, Yes it is, No it isn't, Is it part of the circulatory system ?, Yes it is, No it isn't, Choose the correct option: Brain, internal organ, external organ, Choose the correct option: ears, internal organ, external organ, Choose the correct option: eyes, internal organ, external organ, Choose the correct option: lungs, internal organ, external organ, Choose the correct option: stomach, internal organ, external organ, Choose the correct option: skin, internal organ, external organ, the teeth and saliva break up the food here, stomach, mouth, intestine, the food waste goes through here, stomach, mouth, intestine, strong acid starts to break down the food, stomach, mouth, intestine, What's the correct system for this organ?, digestive system, respiratory system, circulatory system, Nervous system, What's the correct system for this organ?, digestive system, respiratory system, circulatory system, Nervous system, What's the correct system for this organ?, digestive system, respiratory system, circulatory system, Nervous system, What's the correct system for this organ?, digestive system, respiratory system, circulatory system, Nervous system

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