These limitations are based on the fact that a hypothesis must be testable and falsifiable and that experiments and observations be repeatable. This places certain topics beyond the reach of the scientific method. Science cannot prove or refute the existence of God or any other supernatural entity.
A cladogram is a diagram of branches that show the cladistic relationship between animal species. A node you can expect to find on the cladogram would be <span>Deuterostome development. Examples of deuterostomes are starfish and sea cucumbers.</span>