Cosmozoic theory (Theory of panspermia) given by Richter (1865), Helmhollz (1884), Arrhenius (1908) suggested that life reached the earth from some heavenly body through meteorites. Panspermia (primitive form of life, as suggested by Arrhenius 1908) consisted of spores or seeds (sperms) and microbes that existed universe and produced different forms of life on this earth.
The Cosmozoic Theory proposes that life on earth did not actually originate planet, though there are several other theories on how life actually did According to this theory, ‘protoplasm’ reached the earth in the form of or other simple particles from some unknown part of the universe with and subsequently evolved into various forms of life. Helmholz (1884) ‘protoplasm’ in some form reached the earth with falling meteorites.
Evidences against Cosmozoic Theory: Living matter cannot survive the extreme cold, dryness and ultra-violet radiation from the sun required to be crossed earth.
