2.What is disease? How many types of diseases have you studied? Give examples?
Answers
Answer:
A disease is an abnormal condition that negatively affects the structure or function of all or part of an organism, and that is not due to any immediate external injury. Diseases are often known to be medical conditions that are associated with specific signs and symptoms.
Types of diseases:
There are four main types of disease: infectious diseases, deficiency diseases, hereditary diseases and physiological diseases. Diseases can also be classified in other ways, such as communicable versus non-communicable diseases.
Example:
Infectious diseases - Chicken pox, Common cold.
Deficiency diseases - Night blindness, Rickets .
Hereditary diseases - Hemophilia, Muscular dystrophy.
Physiological diseases - Asthma, Glaucoma.
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