Biogeny -

: Demonstrated that maggots only appeared on rotting meat if flies were able to lay eggs on it.

: This theory maintains that life on Earth has been a continuous chain of biological descent since its first emergence. Historical Development biogeny

: Showed that boiled broth would not grow microorganisms if it was sealed in an airtight container. : Demonstrated that maggots only appeared on rotting

: As Rudolf Virchow famously stated, "Omnis cellula e cellula" (all cells come from pre-existing cells), asserting that living tissue cannot arise from non-living chemicals. : As Rudolf Virchow famously stated, "Omnis cellula

: New life forms are created through reproduction (sexual or asexual), which ensures the transfer of genetic material from one generation to the next.

(also known as biogenesis) is the biological principle that living organisms can only be produced from other living organisms. It stands in direct opposition to the obsolete theory of spontaneous generation (abiogenesis), which proposed that life could arise from non-living matter. Core Principles

: Conducted the definitive experiment using swan-neck flasks . He proved that even when exposed to air, broth remained sterile unless dust particles (carrying microbes) were allowed to enter the flask. Biogeny in the Modern Origin of Life Theory