Theory of panspermia was proposed to explain the
Origin of universe
Origin of life
Origin of earth
Evolution of life
It states that life transfers from one planet to other in the form of spore, sperms or seeds.
Which one of the following is the correct example of homologous organs
Organisms which obtain energy by the oxidation of reduced inorganic compounds are called
Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of
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