How do poriferan animals differ from coelenterate animals?
Poriferans -- (A) pores are present on their body. (B) cellular level of body organisation is present. (C) mesoglea is absent in it. Coelenterates --(A) pores are not present on the body. (B) tissue grade of body organisation is present. (C) mesoglea ie. Body cavity is present in it.
