answersLogoWhite

0

(sponges) animals with no tissue and with no definite body plan; they are sessile (they dont move), and they are filter-feeders; they contain choanocytes, which are flagellated cells that serve to keep water moving in through pores in teh sides of the body and out through a large opening at the top; other cells called amoebocytes secrete supporting structures which help hold the sponge upright, these structures can be hard, sharp, crystal-like structures called "spicules"

Animals(sponges) with no tissue. They are sessil (they dont move), and are filter feeders. They house choanocytes, which are flagellated cells that keep water moving through pores in ten sides of the body.

User Avatar

Wiki User

12y ago

What else can I help you with?