Is it more likely that the T. Rex would have a 3-chambered heart or a 4-chambered heart and why?
Question 14 options:
A 3-chambered heart because the caiman also has a 3-chambered heart and the T. Rex is most closely related to the caiman.
A 3-chambered heart because the parrot has a 3-chambered heart and the parrot is most closely related to the T. Rex.
A 4-chambered heart because the caiman also has a 4-chambered heart and the T. Rex is most closely related to the caiman.
A 4-chambered heart because the parrot has a 4-chambered heart and the parrot is most closely related to the T. Rex.