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Origins of Life. A cosmic perspective. Douglas Whittet. Chapter 1. Introduction. How life formed, and how it is distributed in the Universe, are distinct but closely. He tried to understand the origin of life as part of the biochemical reactions' evolution, by means of the Darwinian competition and selection, in the pre-biotic Earth ( Overview. • The formation of Earth. • Pre-biotic chemistry (Miller-Urey exp.) • First evidence for early life. • The evolution of life. • Extreme life on Earth: lessons for HOW LIFE ORIGINATED ON. EARTH? Six major theories are proposed to explain the origin of life on earth. These theories are as follows: 1. Theory of SpecialFrom the late 1800s onwards, these twin developments triggered a flourishing of thought on the chemical origins of life on a pre-biotic Earth, from Charles Darwin's Dec 23, 2011 - Science does not provide authentic explanation regarding the origin of Universe in the controversial 'Big Bang' theory for evolution of the Universe (Arp et al. 1990) Because this uniquely biological property has its physical basis in proteins and nucleic acids, the goal of modem work on the origin of life is to discover the manner Jul 30, 2018 -