which of the following concepts was a commonality of early greek theories on how life started and how diverse living forms arose?

spontaneous generation

Explanation:

The theory of spontaneous generation, though outdated, seem to state that living organisms originate from other objects that are non-living.

Aristotle, a Greek philosopher were among the first people to talk about this theory. He further established the appearance of certain animals in places where they never existed, such as the appearance of a fish in a new water body. The appearance of maggots on rotting meat and bread were some of the established facts that were used to support the theory.