All choices correctly describes physical barriers. Physical barriers after composed of tight junctions wherein it is difficult for the bacteria and viruses to penetrate. Examples of these physical barriers are the skin and the mucous membranes and these work in conjunction with secretions like tears and mucus (as tears and mucus contain IgA, a special type of immunoglobulin that is secreted to fight harmful organisms).
The therapy can find the damaged cancer cells and prevent it from reproducing, or even taking it off the gene so that none person from the next generations will suffer the same.
11 important organ systems
The correct answer is C. Endemic
Explanation:
In biology, diseases can be classified into different types this includes pandemic, epidemic, and endemic diseases. In the case of pandemics, these are diseases that spread worldwide or in all the population of a species and because of this affects many individuals. On the other hand, epidemics are diseases that spread in many individuals of a species or population and at the same time. Finally, the endemic disease is a type of disease that is common in one species or population and that is constantly present, although only a few individuals are affected by it. Considering this, it can be concluded a disease that is constantly present is endemic.
