Enterocoelom appeared first in the course of evolution in

Question

Enterocoelom appeared first in the course of evolution in (A) Echinodermata (B) Annelida (C) Chordata (D) Aschelminthes

Tardigrade Admin · Accepted Answer

Echinoderms are considered the connecting link between Chordata and Non-chordata because of their coelom similar to chordates, i.e., enterocoel (body cavity formed from enteron of gastrula).

Q. Enterocoelom appeared first in the course of evolution in

Echinodermata

Annelida

Chordata

Aschelminthes

Echinoderms are considered the connecting link between Chordata and Non-chordata because of their coelom similar to chordates, i.e., enterocoel (body cavity formed from enteron of gastrula).