When walking in the mountains or after strenuous exercise, one tend feel short of breath. Why? Take the KnowPro Respiratory System quiz to find out. This app tests you on how the most important system in the body regulates vital biological functions.

Fundamental to all living organisms, respiration is the process by which a body transports oxygen to its cells and removes carbon dioxide from those cells. Whether speaking of aquatic or terrestrial animals, respiration is essential to all living creatures. Loaded with interesting facts, this quiz will improve your knowledge of respiratory processes.

The quiz is helpful for biology students or anyone who is curious about the inner workings of the body with respect to respiration.

Every KnowPro app:
1) Is written by an expert on the topic
2) Is edited by an award-winning professional editorial staff, and
3) Features top-of-the-line technology for testing your knowledge and learning a subject matter

*This app is for educational purposes only.