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What characteristic of cell membranes allows for some substances to pass through them, but not others?
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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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Why is earth's outer core hotter than earth’s oceanic crust? earth’s oceanic crust is denser than earth’s outer core is. earth’s oceanic crust has lava flowing from the mantle. earth’s outer core has a composition of solid iron and nickel. earth’s outer core is deeper within earth than oceanic crust is.
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Biology, 23.06.2019 01:10, linkaye3031
Clownfish lay hundreds of eggs but only 10% to 15% survive into adulthood
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What characteristic of cell membranes allows for some
substances to pass through them, but not othe...
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