No. Amphibians have bones, including a backbone, as they are vertebrates.
Amphibian
Amphibian skeletons are made of bone and cartilage.
True :) this was written by me
they both have a back bone
True
Though the frog is an amphibian, it is also a vertebrate as it has a spine (back-bone).
no. humans are mamals that is true no humans are mammals.
Yes, they do. They are vertebrates ( meaning animals with backbones), not invertebrates ( meaning animals with no backbone).
no they do not have a back bone. They are invertebrates
No it is not true
A salamander is a amphibian.
Frogs can exchange a little oxygen through their skin.