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Biology, 22.06.2019 11:30
Nucleic acids offer variability because they contain alternate forms of genes called .
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Biology, 22.06.2019 15:00
Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.
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Biology, 22.06.2019 19:30
Which two molecules generated by the krebs cycle pass their high-energy electrons to the electron transport chain? a. nadh b. c6h12o6 c. fadh2 d. nad+
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Biology, 23.06.2019 01:10
Which of the following terms describes water that is safe to drink? clean filtered potable sterilized
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How are meiosis and mitosis different?...
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