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Question

The theory of panspermia is also called as

A
Cosmozoic theory
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B
Theory of catastrophism
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C
Theory of biogenesis
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D
Naturalistic theory
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Solution

The correct option is C Cosmozoic theory
  • The cosmozoic theory is also called the theory of panspermia. According to this theory, life has reached this planet Earth from other heavenly bodies such as meteorites, in the form of highly resistant spores of some organisms. This idea was proposed by Richter in 1865 and supported by Arrhenius (1908) and other contemporary scientists.
  • Catastrophism describes the differences in fossil forms encountered in successive stratigraphic levels as being the product of repeated cataclysmic occurrences and repeated new creations.
  • Biogenesis is any process by which lifeforms produce other life forms.
  • Naturalistic theory or modern theory of the origin of life states that life originated from a collection of chemicals through a progressive series of chemical reactions in which atoms combined into molecules, molecules into simple organic molecules and simple organic molecules into complex, and complex into aggregates which ultimately got organized into the living matter.
Therefore, the correct answer is option A.

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