$I.$ Oparin's theory of the origin of life is based on $....A......$
$II.$ The chemical theory of the origin of life was given by $....B......$
$II.$ The chemical theory of the origin of life was given by $....B......$
- A$A$ - biological evolution,$B$ - Oparin
- B$A$ - elemental evolution,$B$ - Haldane
- C$A$ - organic evolution,$B$ - Oparin and Haldane
- D$A$ - chemical evolution,$B$ - Oparin and Haldane
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