Definitions [4]
Define biogenesis.
The phenomenon of biogenesis states that living beings are neither produced spontaneously, nor created. Instead life comes from pre-existing life.
Define organic evolution.
Organic evolution is a slow, gradual, continuous and irreversible change through which the present-day complex forms have descended from their simple pre-existing forms of the past.
Definition: Natural Selection
The process where organisms with favorable variations survive and reproduce more successfully than others is called natural selection.
Definition: Survival of the Fittest
The concept where only well-adapted individuals survive in the struggle for existence is called survival of the fittest.
