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Biology, 22.06.2019 13:30
What is any method of measuring the age of an object or event in years, such as using atomic half-life?
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Add solid urea to a beaker of water. the beaker gets very cold. is δh favorable or
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As human red blood cells mature, they lose their nuclei. as a result of this loss, which process would be impossible for mature red blood cells to carry out?
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Biology, 23.06.2019 05:00
Scientists discovered fossils in several layers of the earth you see here. they found fossils of algae, snails, and clams in layer d. given that information, where do you think they found fossil evidence of simple land plants and amphibians?
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Explain why sciences use models to study atoms...
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