Mention two similarities between. (i) Avis and mammals (ii) A frog and crocodile (iii) A turtle and Pila
(i) Aves and mammals are homeothermal and have extra embryonic membranes. (ii) Frog and crocodile are cold blooded and are tetrapods. (iii) A turtle and Pila have hard covering over the body and are cold-blooded animals.
