Part one of term paper
Respiration is the process of taking in and using oxygen. There are three different phases of respiration: external respiration, internal respiration, and cellular respiration. External respiration is the intake of oxygen from the environment and the release of carbon dioxide. In internal respiration, oxygen is carried to the cells and ...

Part two of term paper
... of the mucous lining causes blockage of breathing, usually due to dust, animal fur or feathers, or pollen. Many people have asthma which is caused by allergies, called extrinsic asthma, usually suffer from hay fever. Non allergic asthma, which adults usually have, is called intrinsic asthma. Intrinsic asthma is usually caused by respiratory infections and emotional upsets. A typical asthma attack begins with coughing, wheezing, and shortness of breath. Some people have dry coughing as the only s ...