Hurrah, we come to the end of the module! We started by wondering how the nutrients in the food we eat reach the trillions of cells. The answer is: blood. Blood carries nutrients and oxygen to each cell of the body.

The blood vessels cover a lot of length in the body. A LOT! If you took all the blood vessels in a human adult, and connected them end to end, the total length would be 1 LAKH KILOMETRES!

We need such a large network so that the nutrients we produce in the small intestine reach all parts of the body.

Next Module

Check out the next module in this series! Diversity in Living Organisms 1

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Next Module

Check out the next lesson in this series! Diversity in Living Organisms 1