Antibiotics: drugs used in the treatment and prevention of prokaryotic bacteria. Designed to disrupt structure or metabolic pathways, like cell walls and membranes, translation, transcription, DNA replication, and other metabolic processes. Antibiotics are ineffective against eukaryotes and viruses. Indiscriminate use of antibiotics can lead to antibiotic resistance. This is an example of evolution by natural selection in action since mutation causes antibiotic resistance naturally, resistant bacteria divide rapidly, vulnerable bacteria are killed, creating a new antibiotic-resistant strain of bacteria.
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