Why is the immune system essential for our health?

  • A
    It helps in digestion of food.
  • B
    It acts as a defense mechanism against pathogenic microbes.
  • C
    It regulates the body temperature.
  • D
    It helps in the circulation of blood.

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Similar Questions

State in tabular form the modes of transmission of each of the following diseases:
$(a)$ Syphilis
$(b)$ Tuberculosis
$(c)$ Jaundice
$(d)$ Japanese encephalitis

Associate the following diseases/infections with their causative agents:
$(a)$ Sleeping sickness
$(b)$ $SARS$
$(c)$ Kala-azar
$(d)$ Acne
$(e)$ $AIDS$
$(f)$ Dengue fever
$(g)$ Malaria
$(h)$ Brain fever
$(i)$ Chickenpox
$(j)$ Polio

Name the organism causing the following diseases:
$(i)$ Kala-azar
$(ii)$ Sleeping sickness

During a disease:

Differentiate between the following:
- Acute disease and Chronic disease
- Infectious disease and Non-infectious disease
- Symptom-based treatment and Microbe-based treatment
- Antibiotics and Vaccines
- Congenital disease and Acquired disease

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