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When the oxygen produced by photosynthetic plants in the water dissolves in the water, which of these is being formed?
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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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One student group hypothesized that the dry baker's yeast must be alive.the temperature change, odor, and bubble foation, they said, indicated whych characteristic of life
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How can you say that photosynthesis is the basic energy source for living world...
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