It suggests that life originates from inanimate matter, such as mud, sweat, and decaying meat.
It suggests that every living being comes from another pre-existing
It suggests that life on Earth originated from spores that came from outer space carried by meteorites.
It suggests that the appearance of life was preceded by a chemical evolution of existing compounds.
It points to a divine being as the absolute creator of everything
Creationist theory
Chemosynthetic theory
Panspermia theory
Biogenist theory
Abiogenist theory