The digestive system breaks down food, the respiratory system takes in oxygen, and the cardiovascular system delivers the oxygen and food to the cells.
Answer:
Antony Van Leeuwenhoek
Explanation:
Discovering bacteria and creating more than 500 simple microscopes
Answer:
The answer is B, The cells have different functions.
Explanation:
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Answer:
water is evaporated into the air then the water molecules get too heavy and come back down as snow/rain/ect
