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This Concept Map has information related to: Ashley Carey, Ordovician ???? coral, first fish, Chapter 20 about Time, Paleozoic Era the Ordovician, Chemical Evolution which requires, requires ???? energy source, The Endosymbiont Theory which says organelles originated from mutually advantageous symbiotic relationships between 2 prokaryotes, Tertiary Period it was mostly cool and dry, requires ???? availibilty of chemical building blocks, Paleozoic Era the Permian, Jurassic were large dinosuars, toothed birds, insectiovorous mammals