Question

Which is not a distinction between fish and amphibians?

A. Fish have a two-chambered heart, and amphibians have a three-chambered heart.
B. Fish have scales, and amphibians do not.
C. Fish are endothermic, and amphibians are ectothermic.
D. Fish do not go through metamorphosis, but amphibians do.

Answer 1

I think it's b fish have scales and amphibians do not.

Answer 2

I think it's B but not sure