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Biology, 22.06.2019 09:40
Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.
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Which of the following happened during the precambrian era? the first prokaryotic cells the first eukaryotic cells development of photosynthesis all of the above
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Biology, 22.06.2019 16:00
One reason scientists are trying to develop fuel sources from corn and sugar is because these sources are renewable fossil fuels are being depleted these crops can be widely grown all of the above
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