Biology for IGCSE & O level - Variation And Selection (Section 5 - No. 44)
Which of the following scenarios is an example of an evolutionary adaptation?
A person getting a tan after being exposed to sunlight.
A bird learning to sing a new song.
The development of antibiotic resistance in bacteria.
A tree shedding its leaves in the fall.
Explanation
Antibiotic resistance in bacteria is a classic example of adaptation, where a population changes in response to environmental selection pressure.
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