E
Annelida
aschelminthes
No, mollusks have a true coelom instead of a pseudocoelom. The coelom is a part of mollusks and annelids that is a cavity within the mesoderm that is filled with fluid.
no
platyhelminthes
platyhelminthes
platyhelminthes
The coelom is the body cavity of an animal. A true coelom is a body cavity that is complete from mouth to anus with no breaks; there are animals that have pseudocoeloms - mouths and anuses but no solid connection between the two.
This space is called coelom or body cavity .
Echinoderms also have a spacious coelom (an open, fluid-filled body cavity lined with tissue), large gonads, and (usually) a complete gut.
it does not have a coelom.
Coelom. It is partitioned by septa, which is a divider between segments of the worm.