Biology, 29.09.2019 23:30 sierraseideman1023
Scientists estimate that the earth formed some 4.6 billion years ago with the first forms of life appearing around 3.5 billion years ago. these first forms of life were simple prokaryotes. later, the first photosynethic organisms resulted in more in the atmosphere. this allowed for more higher level organisms to appear on earth.
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Study this image which statement best describes the rock shown check all that apply
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Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.
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If a force of 40 newtons moves a cart a distance of 9 meters, the work done is nm. if the same force moves the same cart three times that distance, the work done is nm.
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Scientists estimate that the earth formed some 4.6 billion years ago with the first forms of life ap...
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