A complete gut with mouth and anus is
formed for the first time in
(A) Sponges
(B) Coelenterates
(C) Aschelminthes
(D) Platyhelminthes

Question

A complete gut with mouth and anus is formed for the first time in (A) Sponges (B) Coelenterates (C) Aschelminthes (D) Platyhelminthes​

Melody · Answer

Answer:   I think sponges but I am not sure.

Serenity · Answer

Answer:   A complete gut with mouth and anus is  formed for the first time in  (A) Sponges

A complete gut with mouth and anus isformed for the first time in(A) Sponges(B) Coelenterates(C) Aschelmin