Biology
What natural biological defense system protects the body from disease and fights off germs?
More Questions from Biology
What is an automatic response that doesn't involve the brain called?
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What is the name of the sugary substance that many insects get from flowers?
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What are squirrels thought to bury to store for a winter supply of food?
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Which of these animals goes through incomplete metamorphosis?
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What are the first organisms to return to an area devastated by a major disaster?
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What are the cells in the pancreas that secrete insulin?
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What gas do plants take in that humans give off when they breathe?
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What is the fold of tissue that surrounds a mollusk's soft body?
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