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Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation
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Which of the following is likely not involved in this example of ecological succession? a) the rotting remains of plants add to the fertility of the soil. b)the soil becomes so fertile that eel grass is replaced by other plant species. c) the roots from plants stabilize the sediment, keeping it in place. d) the concentration of salt becomes so high that all plant life is destroyed.
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Biology, 22.06.2019 20:00
Why is it bad that some cancer cells can make their own growth hormones?
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Which of the four levels of protein structure is maintained after denaturing? explain your answer....
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