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Question #1 List each of the Eras of priming come ons history. involve 2 periods from each of the Eras and explain how numbers in those periods were important to the history of life on our planet. In the Paleozoic Era, the devil periods that I think ar important are the Devonian plosive consonant and the Permian Period. During the Devonian Period in the Paleozoic Era, plants evolved into plants that could survive in drier areas. Seas in any end rose and fell over current-day normality America. I think the Devonian Period is important because early amphibians began to develop. It is in any case considered the grow of the Fishes. The Devonian Period had a lot of fishes being veritable and discovered. The Permian Period is also precise important. During the Permian Period, a lot of land commode deck out by our continents and was called Pangaea. The Permian period was ended by the life-sizedst mass defunctness in all of mankind. The mass extinction wiped bulge 90% of Earths marine animals and 70% of Earths land animals. Some scientists believe that it is, the worst extinction event in the planets history and I disagree, I do non requirement dinosaurs to still be roaming. In the Mesozoic Era, the two periods that I think are important are the Jurassic and cretaceous Periods. During the Jurassic Period, dinosaurs evolved into land, water, and air.

The Jurassic Period is also referred to as the Age of Dinosaurs. The earliest bird, Archaeopteryx, took to the skies late in the Age of Dinosaurs. The conclude I picked this period is because I find dinosaurs very fascinating. Dinosaurs became fa ir like humans, the dominant species, just e! arlier and bigger. During the cretaceous Period, another(prenominal) popular mass extinction happened about 65 one million million million years ago. So, dinosaurs still roamed during this period but they died sullen this time. The Cretaceous Period is very interesting. Scientist hypothesis that a large asteroid impacted Earth near New Mexico; formed the disjuncture of Mexico. In the Cenozoic Era, the last and current era, I think...If you want to get a full essay, order it on our website: BestEssayCheap.com

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