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Blood is a liquid connective tissue whose main job is transportation of nutrients and wastes. An analogy would be streets and highways with the roads being the blood vessels and the cars, trucks, and motorcycles being the blood. In this model, the driveways would be the capillaries and the houses and buildings would be the cells in the body.

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13y ago
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11y ago

they work by just being able to flow and they just are tubes the can carry blood to every cell in the body

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Q: How do the capillaries work?
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