Acoelomates, such as flatworms, do not have a true gut cavity; instead, they possess a gastrovascular cavity that functions in both digestion and nutrient distribution. This cavity is more sac-like compared to the complete digestive systems found in coelomates, but it has a single opening that serves as both mouth and anus. Overall, the digestive system in acoelomates is simpler and less specialized than in organisms with coelomic cavities.
A bilateral animal has a lined gut cavity. On the other hand, animals like roundworms have a gut cavity but it is only partially lined.
i dont know i was trying to look for it! i thought that this would have it!
No, clams are not acoelomate; they are coelomates. Clams belong to the phylum Mollusca and possess a true coelom, which is a body cavity located between the gut and the outer body wall. This coelom allows for the development of complex organ systems. Acoelomates, on the other hand, lack a coelom and include organisms like flatworms.
acoelomate
I think it the acoelomate. Indeed it is :D
Some chordates have them, and in some the distinction may need to be qualified. In molluscs they remain undifferentiated, in mammals for example they differentiate into separate cavities, the pleural, peritoneal and pericardial.
No ,they lack gut but possess gastrovascular cavity .
Cnidarians have no gut in their body .The structure which performs function similar to gut is called gastrovascular cavity .
A gut is the internal digestive tract of an organism, while a body cavity is a fluid-filled space within the body that contains and protects organs. The gut is a specific organ system responsible for digestion, while body cavities serve a more general protective function.
The cavity of a gastrula forming a primitive gut.
A) Only one opening: they expel undigested material through the mouth.
Peritoneal cavity