Biology for IGCSE & O level - Variation And Selection (Section 6 - No. 47)
If a population of bacteria is exposed to an antibiotic, what will happen to the bacteria that are resistant to the antibiotic?
They will die.
Their numbers will decrease.
Their numbers will stay the same.
Their numbers will increase.
Explanation
Antibiotic-resistant bacteria will survive and reproduce, increasing their numbers.
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