Body having meshwork of cell, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum

Options

A. Coelenterata
B. Porifera
C. Mollusca
D. Protozoa

Answer

B

Explanation

In Porifera (sponges), bodies are asymetrical. Body lacks tissue or organs, but from a meshwork of cells surrounding channels that open to the outside through pores, and that expand into internal cavities lined with food filtering flagellated cells (choanocytes).