Biology
What "trapdoor" on your windpipe helps keep out food particles?
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What adjective means belonging to or associated with a flower?
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What is the name of the acid formed when hemoglobin bonds with hydrogen ions?
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What are the structures found in the cytoplasm of eukaryotic cells called?
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In which fluid-filled cavity do organs develop in organisms such as earthworms?
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What type of system circulates blood around the body?
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Which term refers to the presence of or requirement for oxygen?
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