Question

write some common characters of pisecs,reptilia,and aves​

Answer 1

Explanation:-

Common characters of Pisces, Reptilia and Aves include;

• All of them are triploblastic, i.e., their body is derived from three types of germ layers - ectoderm, mesoderm, and endoderm.
• All of them are oviparous organisms, i.e., they lay eggs
• All of them are vertebrates, having a notochord and a dorsal nerve tube atleast for some period of their life cycle.
• All are cold-blooded animals.
• Excretory organs are the kidney.