Coelenterates animals have two layers of cells. ... Due to the presence of two layers, they are called diploblastic animals.

What is the meaning of this word diploblastic?

: having two germ layers —used of an embryo or lower invertebrate lacking a true mesoderm.

What makes an animal diploblastic?

diploblastic Describing an animal with a body wall composed only of two layers, ectoderm and endoderm, sometimes with a noncellular mesoglea between them. Coelenterates (i.e. cnidarians and ctenophorans) are diploblastic. Compare triploblastic.