Journal of Kyosei Studies
Online ISSN : 2433-1635
Print ISSN : 2185-1638
ISSN-L : 2185-1638
Endosymbiosis and global environment calendar along the history of organic evolution
Kazuko MORIKAWA
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JOURNAL OPEN ACCESS

2016 Volume 7 Issue 7 Pages 96-107

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Abstract

There exist several turning points in the Organic evolution history of almost 4 billion years The most significant event in this history is the emergence of endo― symbiosis of the prokaryotic organism.The Eukaryote developed from it and many diverse organisms branched out from the origin organism,resulting in so many habitats On the ground Before 5.4 hundred million years ago, the Cambrian Explosion took place, showing different sides of the evolution history..Explosive diverse organisms appeared in the early sea environment,and Anomalocaris was the largest organism among those members Anomalocaris vanished at the end of the Cambrian Explosion, the reason for which, however, is not demonstrated The extinction of the largest organism at that period of dinosaurs occurred before 65 million years ago The reason of dinosaurs' extinction was explained as not only the collision of meteorites, but also as the remittance of the life span of the dinosaurs as the species The global environment calendar is conceptualized assuming that the birth of the earth was at 0 o'clock on the 1st of January and now is 24 o'clock on the 31st of December. homo sapiens were branched from the anthropoid apes only at 3 min before midnight This means that the human being is the newcomer and junior of organisms on the earth how the earth history would continue depends on own living methods We should strive not to blindly follow the steps toward extinction like Anomalocaris did.

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© 2016 The Japan Society for Kyosei Studies
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