Which pattern is evidence that reptiles and amphibians share the same ancestor?
a
They have backbones.
b
They have eyes.
c
They have similar skin.
d
They have legs.
3 answers
The correct answer is option A: They have backbones. Reptiles and amphibians are both vertebrates, meaning they have backbones, and they share a common ancestor that also had a backbone.
thx
A. They have backbones