Biology
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
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Answer
An extract of dead and weakened microbes.
Reason — Vaccines are an extract of dead and weakened microbes which when injected into the body lead to formation of corresponding antibody.
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Related Questions
Naturally acquired active immunity would be most likely acquired through which of the following processes?
- vaccination
- drinking colostrum
- natural birth
- previous infection with a disease-causing organism
DPT stands for:
- Diphtheria, Polio and Tetanus
- Diphtheria, Pertussis and Tetanus
- Dysentery, Polio and Typhoid
- Diphtheria, Polio and Typhoid
The letter "B" in the name BCG vaccination stands for:
- Brief
- Beri-beri
- Bacteria
- Bacillus
The body's defense against diseases is termed as:
- Hygiene
- Immunity
- Health
- None of these