Question

Which of the following is not a characteristic shared by reptiles and birds?

A. Single occipital condyle
B. Nucleated red blood cells
C. Single ear ossicle
D. Similar lower jaw structure
E. All of the above are characteristics shared by reptiles and birds

Answer 1

Nucleated red blood cells is not a characteristic shared by reptiles and birds.

Step-by-step explanation:

Among the characteristics listed, nucleated red blood cells is not a characteristic shared by reptiles and birds. Reptiles have nucleated red blood cells, while birds have enucleated red blood cells, similar to mammals.