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To move, grow and keep warm, our bodies need nutrients and oxygen, this nutriens come from the food. Nutrition is the process of taking in a breaking down food into the units of energy our body can use.
But nutrition is not only eat (digestive system), we can nurture us breathing (respiratory system) too. The circulatory system and the excretory system also are part of the nutrition.
Here is a video about the nutrition!
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