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Origin and Evolution of Life
Life and its Origin
Life is a unique and complex phenomenon that distinguishes the living organisms from non-living things or inanimate things. The origin of life in the universe is one of the most complicated problems for the biologists. The problem of creation resolves itself into two aspects: the origin of the forms of life and origin of life itself. Different biologists have proposed different theories concerning the origin of life. The major theories accounting for the origin of life are:- Life was created by a supernatural power at a particular time (Special Creation Theory
- Life arose from non-living matter on numerous occasions by a process of spontaneous generation (Theory of Spontaneous Generation)
- Life has no origin (Theory of Eternity of Present Condition)
- Life arrived on this planet from elsewhere (Cosmozoan Theory)
- Life arose according to chemical and physical laws (Biochemical Evolution)
