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the sodium-potassium pump actually changes shape as it shuttles ions the cell membrane. t or...
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Biology, 22.06.2019 02:00, badpotterchris
How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.
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Biology, 22.06.2019 04:30, Lindsay882
Why are scientists concerned about the depletion of the ozone levels in the stratosphere?
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Biology, 22.06.2019 07:30, sawyerharper
Which locations on the map are low-pressure areas? a b c d e
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Biology, 22.06.2019 08:10, viktoria1198zz
What is the next step in the process after a substrate enters the active site of an enzyme
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