Life and the ability to form more of that very same creature
The principle that all species were derived from common ancestors is known as Common descent.
ancestors
Cladogram
The limbs of Species A have a similar structure to the limbs of Species B, but perform a different function.
Homologous structures.
the sharing of common ancestors within the species' evolutionary history.
yes, theses ancestors are called common decent
the formation of species
Scientists use Ancestors and DNA to group DNA.
homologous structures (correct answer, your response)
It shows the process of wich the species eveolved, what are it's common ancestors, how its related to similar species, and so on and so fourth.
Common ancestors are the ancestors you and a relative of yours have in common. For example, your first cousin and you have the same grandparents. The grandparents are your and your first cousins common ancestors.