Zygote, cleavage and hatching are embryogenic stages of fish, salamander, turtle and chicken.
Explanation:
The main embryogenic development stages of fish, salamander, turtle and chicken were zygote, cleavage and hatching. all these stages are present in these organisms which shows that fish, salamander, turtle and chicken are evolved from a single ancestor. Due to similar embryogenic development stages indicates close evolutionary relationships among these organisms.
