Some of the pressures leading to the development of resistant strains of bacteria include:
Correct option is D.
Resistant bacteria refers to bacteria which have developed resistant to the common antibiotics used to treat bacterial infections.
Resistant bacteria are no longer destroyed or killed by the common antibiotics due to mutations that have occurred in these bacteria.
Bacteria replicates at a very fast rate such that mutation occur at high rate in bacteria.
However, these mutations may not confer any advantage to the bacteria unless they are repeated exposed to the same antibiotics.
Other factors leading to resistant strain bacteria include:
Therefore, repeated use of antibiotics results in resistant strains of bacteria.
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