Don't spam and don't delete Biology Class 9 Give two differences between the following pairs: (a) Acute and chronic disease (b) Congenital and acquired diseases (c) Infectious and non-infectious diseases
Look at the given pictures and answer the following questions: (a) Identify the organisms. (b) Which type of disease causing organisms are these? (c) Name diseases caused by these organisms. (d) Give two precautions to protect ourselves from the diseases caused by the alongside organisms.
Answers
A) ●Acute disease: it occurs suddenly and lasts for a shorter time period.
Example- Common cold,flu,pneumonia etc
●Chronic disease : it occurs sudden and last for a longer time.It is fatal.
Ex- Cancer, heart disease, diabetes etc
(B)
Congenital disease: the disease that is present from the time of birth.
Ex- genetic disease ( gene defect) Sickle cell anemia,down syndrome etc
Acquired disease:the disease which we aquire during the life time.
Example-malaria, dengue, flu , cancer etc
(C)
Infectious disease:the disease which is caused by pathogenslike virus,bacteria,fungi etc.It can easily transmit from one person to other.
Example- flu, common cold,aids etc
Non Infectious disease: the disease which are not caused by pathogen and cannot be transmitted from one person to other.
Example - Cancer,asthma
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