<span>The word Coryza comes from Greek word "kóruza" which means "</span>nasal mucus".
The infection of the upper respiratory tract by the virus will induce an inflammatory reaction that will lead to secretion of thin watery mucus. The patient will have a runny nose and/or nasal congestion with loss of ability to smell.
Natural selection is the process by which individuals who are best suited to the environment tend to leave (on average) more offspring than others.
Evolutionary changes take place over many generations and through millions of years of natural selection. For the genes to survive, they must be among the strongest.
<span>is absorption of nutrients and minerals from food.</span>
