Endosymbiosis Theory

Endosymbiosis explains the origin of chloroplast and mitochondria. The life was initiated on earth, around 3.5 billion years ago. The first life form was a single cell. According to the Modern abiogenesis theory of evolution studies and Miller-Urey experiment, the earliest life form was arose from organic compounds (non-living matter). The lipid molecule formed the

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Carl Woese Classification

Carl Woese’s Classification- Three Domain System

Carl Woese‘s Classification was introduced by Carl Woese in 1990. It classified the life forms into three-domains which include archaea, bacteria, and eukaryote. Introduction to Carl Woese’s Classification Life on earth was initiated 3.7 billion years ago. Evolution of the first life form resulted into diverse forms of living organisms from unicellular to multicellular. The natural

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