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.

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.

4 Postulates

Offsprings:


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.

4 Postulates

Natural Selection:


The organisms that have the most helpful genetics will be the organisms that will live. When they live, they will be able to produce offsprings and pass on the characteristics to survive to others. There heritable traits will be passed on by generations. Because those with the appropriate genetics to survive live longer and produce more, the good genetics start to become more prominent. They are selected naturally - natural selection.


Cause and Effect:


Because those with the genes to survive create more offsprings, the genes become more prominent - natural selection occurs.

Works Cited:

Allison, L., Freeman, S., Quillin, K. (2013). Biological Science Fifth Edition. London: Pearson.