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Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.
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Adistinctive characteristic of mammals that is not observed in other vertebrates is
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What will a hypothesis become if supported by repeated expermentation
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Explain how the TATA box and transcription factors work together to ensure that RNA polymerase is tr...
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