Why do organisms need special exchange surfaces?

Name the features of a good exchange surface.

Name some examples of exchange surfaces

How are lungs adapted for exchange?

How do lungs make a thin barrier to reduce diffusion distance?

Process of inhaling

Process of exhaling

What is the structure/function of trachea?

What is mucosa?

What is submucosa?

What is the structure/function of bronchi?

What is the structure/function of bronchioles?

What is smooth muscles?

What are elastic fibers?

What are C-shaped rings of caritalge?

What are goblet cells?

What are ciliated epithelium?

What is a spirometer?

Why is soda lime used?