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Biology, 21.06.2019 23:00
The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?
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2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.
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Which feature of a human community is similar to a niche in a biological community
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Do whales experience metamorphosis?...
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