Darwin's Postulates
Mauricio Elizondo
4 Postulates
Variation:
The traits of a single species vary depending on the genetics of the individual organism. The traits an organism possesses can vary just like size and color.
Cause and Effect:
Due to the fact that each organism has different genetics, it has distinct physical features than others of the species.
Moths
Species Genetics
Shells
4 Postulates
Heritable Traits:
Genetic traits are heritable. This means that physical and biological traits are passed on through generations. Parents pass on their genetical attributes to their respective children.
Cause and Effect:
Because traits are heritable, weak parents will have weak children causing them not to be the fittest of the pack. Basically, heritable traits play a part in natural selection.
Eye Color
Hereditary Traits
Hereditary Traits
4 Postulates
A lot of offsprings are created. The number of those created is larger than the number that can survive. This means that only a small number of offsprings live. Of those offsprings, only a few are able to procreate. Some of those produce more than others.
Cause and Effect:
Due to the fact that not all of the offsprings can survive, only those that are fit survive. This means that this plays a part in the process of Natural Selection.
Different Beaks
The Offspring
Offsprings
4 Postulates
Natural Selection:
Cause and Effect:
Because those with the genes to survive create more offsprings, the genes become more prominent - natural selection occurs.