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4-Food chains and food webs Organisms need energy to grow and reproduce. Some organisms, such as plants, make their own food, but most feed...
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4-Food chains and food webs Organisms need energy to grow and reproduce. Some organisms, such as plants, make their own food, but most feed... -
2- The circulatory system The circulatory system moves your blood to all the different parts of your body to send oxygen and nutrient...
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