Which of the following would happen if respiratory rate increased? 

What correctly describes the function of cilia AND mucus? 

How is carbon dioxide transported in the blood? 

What is the BER? How does it prevent the small intestine from being damaged?

Which of the following describes the principle that all amino acids need to be present at one time to make a particular protein? 

Which of the following correctly describes the modifications in the mucosa of the small intestines? 

Match the respiratory organ to its function. 

Match the following digestive diseases with their description. 

What effect does the sympathetic nervous system have on the bronchioles? 

Which of the following is NOT part of the small intestine?