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Question

All of the above.

Important theories to explain the origin of life on earth are

$(i)$ Theory of Special Creation The greatest supporter of this

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All of the above

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All of the above.

Important theories to explain the origin of life on earth are

$(i)$ Theory of Special Creation The greatest supporter of this theory was father Suarez. According to this theory life was created by supernatural powers. According to Bible the world was created in six days. The earth is $4000\, yrs$ old. All the diversity was existed since creation

$(ii)$ Theory of Panspermia This theory is also called the cosmozoic theory. Early Greek thinkers thought units of life called spores were transferred to the different plants including earth from the other planets

$(iii)$ Theory of Spontaneous Generation This theory also is called a biogenesis or autogenesis. This theory states that the life originated from non-living by itself or spontaneous manner

Dismissial of Spontaneous Generation Theory Louis Pasteur by carefully experimentation demonstrated that, life comes only from preexisting life. He showed that in pre-sterilised flasks life did not come from killed yeast, while in another flask open to air, new living organisms arose from 'killed yeast'. Spontaneous generation theory was dismissed once and for all. However, this did not answer how the first life came on the earth.

$(iv)$ Theory of Chemical Evolution This theory is also called modern theory of evolution or neuralistic theory of evolution

Oparin and Haldane proposed that the first form of life could have come from pre-existing non-living organic molecules (e.g., $RNA$, protein, etc.) and that formation of life was preceded by chemical evolution, $i.e.,$ formation of diverse organic molecules from inorganic constituents

Oparin and Haldane's theory is also called

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