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Biology, 22.06.2019 02:00
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 14:00
The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird
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Biology, 22.06.2019 17:20
What is an example of a scientific question that galileo could not have answered with out this new tool?
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During which months do both the northern and southern hemispheres receive the same amount of energy...
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