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This Concept Map has information related to: Kip Hacking Chapter 20, Cenozoic Era second Quaternary Period, Cenozoic Era its when modern animals came about, Eukaryotic cells arose have a nuclieous, Triassic Period came about ferns common and gymnosperms dominate, Evolution happened extremely fast during this period its Nick named Cambrian Explosion, cells prokaryotic means has no nuclieous, Precambrian Time lasted 4.6 bya to 543 mya, 4 requirements for Chemical Evolution has Energy to make organic molecules, Mesozoic era characterised by evolutionary diversity of reptiles, Palezoic era fifth Carboniferous period