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Biology for Kids: Breathing and the Respiratory System

Breathing and the Respiratory System

Breathing and the Respiratory System. (n.d.). Ducksters. https://www.ducksters.com/science/breathing.php

Our body is a very complex system. One of the main things it needs is energy. When we eat our body digests the food to get complex molecules like glucose, which it can use for energy. However, food alone isn't enough. The cells also need oxygen to react with the glucose to create the energy. We get the oxygen to our cells with the respiratory system and by breathing. The respiratory system is made up primarily of the lungs and windpipes. To continue reading, follow the link above.