Biology

What is the common cold caused by?

More Questions from Biology
A group of which insects is called an army or a colony?
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In which fluid-filled cavity do organs develop in organisms such as earthworms?
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How long can an anteater's tongue get?
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What is the largest-blooming single flower in the world?
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What gives red blood cells their color?
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What nerve tissue transmits light signals from your eye lens to the brain?
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Which of these seeds most likely would be carried around in the fur of an animal?
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Which type of Japanese tree is small and grows in a pot?
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