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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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When a person is exercising the body needs to deliver increased amounts of oxygen to the muscles which component of blood ensures that the muscles will receive it
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Which direction does the energy flow in this energy pyramid ?
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Biology, 22.06.2019 06:30
To sciences do not agree on which type of grocery bag is better for the environment what is most likely to come out come out of the disagreement
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Why is a sea otter a “keystone”??...
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