Two of your classmates are arguing The first who is working

Two of your classmates are arguing. The first, who is working on relationships of all vertebrates, claims that having legs is an apomorphy, while the second, working on relationships in reptiles, claims that it is a primitive character.

Which one is right? Or are both wrong or right? Explain your answer.

Solution

Answer:

legs is an apomorphy in vertebrates. Apomorphy represents the specfic trait in the species, and that trait is transmitted to next generations.All tetrapods in vertebrates are having legs.All reptiles are not primitive, reptiles such as turtles belong to anapsid are primitve.so, vertebrates having legs is an apomorphy is true.