Biology

What are the thin bones that protect your lungs and heart?

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What would you call a nautical unit of speed?
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What animal has the biggest and heaviest brain among all animals?
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What is any permanent change to a gene called?
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Which of these plants grows from a bulb?
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What family do dolphins, porpoises and whales belong to?
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Which famous scientist introduced the idea of natural selection?
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What is the best way to get germs off your skin?
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What kind of plant stem is soft and green?
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