Before the discovery of cells, people believed in the theory of spontaneous generation. According to this theory, living things can come from nonliving things. On the basis of this theory, people believed that maggots that formed on cheese spontaneously arose from the cheese. Which two statements disprove this theory of spontaneous generation?

All matter is made of cells.
All living things are made of cells.
Cells are generally microscopic and impossible to detect with the naked eye.
Living cells can only come from previously existing matter.
Cells form from previously existing cells.

The theory of Spontaneous generation mainly focuses on the fact that Living organisms does not depends on the similar organisms for its regeneration. It states that the living organisms can also be generated by even any non living matters.For examples fleas can be generated from the place where there are dust.

Dead flesh of any thing can lead to the formation of Maggots. With these example we can conclude that Living cells can only come from previously existing matter is not related to the spontaneous generation theory. The statement that says that all living organisms are made of cells also not associated with this theory.