Question

Body cavity is absent in case of animals from.

[Phylum Protozoa, Phylum Porifera, Phylum Mollusca, Phylum Echinodermata]

Answer 1

Presence or Absence of a Coelom. Triploblasts may develop an internal body cavity derived from mesoderm, called a coelom (pr. see-LŌM). This epithelial-lined cavity is a space, usually filled with fluid, which lies between the digestive system and the body wall

Answer 2

Presence or Absence of a Coelom. Triploblasts may develop an internal body cavity derived from mesoderm, called a coelom (pr. see-LŌM). This epithelial-lined cavity is a space, usually filled with fluid, which lies between the digestive system and the body wall.