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What french chemist discovered the radioactive elements polonium and radium?
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Jan 6
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Timber, medicines, dyes, oils, and rubber are just some of the useful products humans derive from what?
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Jan 2
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Dermal tissue covers the outside of a plant in a single layer of cells called what?
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Dec 30, 2024
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Biotechnology uses what to solve problems?
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Dec 30, 2024
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Animals produce most of what chemicals, which are needed to synthesize the fatty acids they need?
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Dec 27, 2024
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