
Evolution quiz
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Which food did a gene change let many adults digest?
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More questions about Evolution
These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.
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Which wild plant became broccoli, kale and cauliflower?
Answer: Wild cabbage
Why: Breeders favoured different parts of one plant: leaves for kale, the stem for kohlrabi, flower buds for broccoli.
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Which part of your cells was once a free-living bacterium?
Answer: Mitochondria
Why: Like the bacteria they came from, mitochondria still carry their own small loop of DNA.
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What new food did lab E. coli evolve to use after 30,000 generations?
Answer: Citrate
Why: Only 1 of the 12 parallel populations managed it, and only after earlier mutations had paved the way.
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What does the selecting in natural selection?
Answer: The environment
Why: Once Britain's 1956 Clean Air Act cut soot, dark peppered moths declined and the pale form became common again.
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What must offspring be for parents to count as one species?
Answer: Fertile
Why: Horses and donkeys can breed, but their mules are almost always sterile, so they stay two species.
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In which big cat do unrelated animals accept each other's skin grafts?
Answer: Cheetah
Why: Cheetahs probably went through a severe population crash about 10,000 to 12,000 years ago, leaving very little genetic variety.