Question

mark the group of phyla that include only the animals with blind sac body plan?:porifera,coelentrata;porifera ,platyhelmenthes;platyhelmenthes,aschelminthes;coelentrata,platyhelmenthes

Answer 1

Answer:

if u find it useful apreciate ◉‿◉

Explanation:

The blind sac body plan is the body plan where the there is a single opening of the digestive system. The tube-like digestive system starts with a single opening through which the food is taken inside and the digested food is expelled through the same opening. The gut is lined with a single layer of endodermal cells that absorb and digest food. Cnidaria and Platyhelminthes exhibit this type of body plan.

so ans is platyhelminthes and colentrata