Theory where many people believed that life was put on early Earth by divine forces. Creation theories are common to many of the world's religions and cultures. Belief that life arose on Earth from inanimate matter after Earth had cooled. Random events produced stable molecules that could self-replicate.
Life began on Earth at least 3.5 to 4 billion years ago, and it has been evolving ever since. Darwin stated the theory of evolution by natural selection, presenting a great deal of evidence to support his theory. Evolution is a change in the characteristics of living things over time
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The acronym LUCA stands for—Last Universal Common Ancestor. ... The geological period of time in which LUCA existed was a point of demarcation from primitive life forms to more-advanced earth-living entities. The importance of LUCA lies in understanding how the three kingdoms of life came from a universal ancestor.
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The evolutionary history of life on Earth traces the processes by which living and fossil organisms evolved, from the earliest emergence of life to the present. ... The similarities among all known present-day species indicate that they have diverged through the process of evolution from a common ancestor.
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