Answer:
1. Disease:The improper functioning of the body brought about by hereditary, infection, diet, or the environment
2. Non-infectious disease: Cannot be spread through contact or any mechanism of transmission
3. Infectious disease: Caused by the spread of harmful microorganisms
4. Viral infection: Caused by the multiplication of a small infectious agent which invades a host cell and then destroys it
5. Bacterial infection: Caused by the reproduction of a small infectious agent which produces poisons that destroy cells
6. Fungal infection: Caused by the the multiplication of fungal organisms on or in the body
7. Protozoan: caused by microscopic parasites bacterial infection
Explanation:
Disease is the lack or disturbance of health. It is a state of complete physical, mental and social well-being. The disease can be viewed as an external factor to the body's normal balance, the result of a healthy defense reaction or even adaptation of the individual to new and different conditions.
An infectious disease is any disease caused by the growth of pathogens in the body and may be transmissible. They can be contracted in many ways. Direct contact between humans spreads some infectious diseases. Animals, like mosquitos, spread through air, water or food., etc. The non infectious disease cannot be spread through contact or any mechanism of transmission.
Virus are acellular beings that need to parasitize cells in order to reproduce, so they are called obligate intracellular parasites. Because they are not able to perform metabolic activities outside a cell, many researchers do not consider these beings to be alive. Others, however, claim that they are a parasitic and extremely simple life form. When a virus parasitizes a cell, it can cause its death or even its division excessively, leading to the appearance of tumors.
Protozoan are unicellular, eukaryotic organisms with heterotrophic nutrition. Most protozoan are free-living and found in different aquatic and humid environments. There are, however, species that live in association with other organisms, such as parasites.
Fungi are generally recognized primarily for their ability to break down organic matter. In addition to this function, some species are capable of causing infections in plants, animals and humans.
Bacteria are organisms formed by a single cell (unicellular), characterized by the absence of a defined nucleus (prokaryotes). The cellular organization of these beings is quite simple, with no membranous organelles being observed. Bacteria can be found alone or forming colonies. Generally, bacteria cause disease by producing toxins, which can be endotoxins or exotoxins.
