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Evolution of multicellular Life section 17– 3 n This section describes how multicellular life developed from the earliest creates to its contemporary diversity.




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Precambrian Time Is the adhering to sentence true or false? virtually 90 percent of Earth’s background occurred throughout the Precambrian. TRUE


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Precambrian Time n n circle the letter of each sentence that is true around life in the Precambrian. Anaerobic and also photosynthetic creates of life appeared.


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Precambrian Time Aerobic forms of life evolved, and also eukaryotes appeared. Multicell life forms evolved.


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Precambrian Time n Life existed on the land in the sea.


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Precambrian Time n Why do couple of fossils exist from the Precambrian? n The animals were every soft-bodied.


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Paleozoic Era n n The an initial part the the Paleozoic Era is the _____Period. Cambrian Era


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Paleozoic Era Is the following sentence true or false? n Life was not really diverse during the Cambrian Period. False n


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Paleozoic Era one the letter of each sentence the is true about the Cambrian Period. N a. Organisms with difficult parts very first appeared. N b. Most animal phyla an initial evolved. N d. Brachiopods and also trilobites were common.


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Paleozoic Era match the durations of the Paleozoic Era with the evolutionary occasions that emerged during them.


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Paleozoic Era n Animals first begin to invade the land throughout the ______Period. N. Devonian


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The history of Life where does the Carboniferous duration get that is name? vast swampy forests, huge ferns and also other plants that grew throughout that time formed thick store of sediment that readjusted into coal over numerous years.


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The history of Life n once many varieties of life things end up being extinct at the exact same time, that is dubbed a(an) n mass extinction




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The history of Life Is the adhering to sentence true or false? The fixed extinction in ~ the end of the Paleozoic impacted only floor animals. False


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Mesozoic Era n complete the compare-and-contrast table. N periods OF THE MESOZOIC ERA