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Question
From the beginnings of life on Earth, it took less than a billion years for single-celled organisms to evolve to multicellular organisms.Answer
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Related questions
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A galaxy with a blueshift is moving ________ Earth.
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Why is the energy source for active nuclei like Seyferts thought to be compact?
A) The sources appear to be single stars in photos.
B) Their energy appears to be non-stellar synchrotron radiation.
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