Question

Hydrostatic movement in coelenterates annelids and echinodermata

Answer 1

i dont know what u want

Answer 2

Hydro static movement is the one that occurs in invertebrates in which the muscles contract to change the shape of an organism’s coelom that helps in the production of the pressure of the certain fluid that is filled up inside the fluid-filled cavity.

This same pattern is followed by the coelenterates, annelids and Echinodermata.