mollusca
reptilia
arthropoda
coelenterata
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Coelom is all about invertebrate nd coelenterate is acoelomate while reptile is a vertebrate animal. So the ans is D
Definition of acoelomate
: an invertebrate lacking a coelom especially : one belonging to the group comprising the flatworms and nemerteans and characterized by bilateral symmetry and a digestive cavity that is the only internal cavity.
All vertebrates are coelomate,but in invertebrates ,phylum porifera and coelentrata are accelerate. Platyhelmenthes
coelom simply means body cavity so which of these do not have body cavity and it is coenlenrata eg.jelly fish
The absence of a coelom, which is a body cavity completely lined by mesoderm, is a characteristic feature of animals in the phylum Cnidaria, which includes the class of animals termed as Coelenterata (formerly known as Cnidaria). Therefore the answer is coelenterata
I'm not reporting a question
but I just payed to update thos app
and is still unlock
