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what characteristic of the species level of organization distinguishes two similar organisms such as ducks and geese as different species?
answered
Jun 19, 2017
Biology
high-school
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What happens when the electron moves from the first energy level to the second energy level? Energy is absorbed, and an emission line is produced. Energy is released, and an emission line is produced.
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Mar 10, 2017
Physics
high-school
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47.3k
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