Biology
The body's defense against diseases is termed as:
- Hygiene
- Immunity
- Health
- None of these
Health Aids
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Answer
Immunity
Reason — Immunity is the ability of body to fight infections.
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Vaccines are:
- An extract of toxins secreted by bacteria.
- An extract of dead and weakened microbes.
- Strong chemicals obtained from fungi.
- Chemicals that are applied on the skin to kill bacteria
The letter "B" in the name BCG vaccination stands for:
- Brief
- Beri-beri
- Bacteria
- Bacillus
The slimy secretion of the epithelial lining of the various organs is called:
- Antiseptic
- Antibodies
- Both (i) & (ii)
- Mucus
Which of the following is not a germ-killing secretion?
- Blood
- Saliva
- Tears
- Sweat