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What is the difference between sponges and sea anemone central cavity?
sponges have central cavity and sea anemone have gastravascular cavity
What body cavity does a sponge have?
Sponges have no proper body cavity or coelom. However, in the everyday sense of the expression, there is a cavity inside sponges, which is called a spongocoel.
Do sponges have a body cavity?
nooo.
What is the sponges body cavity called?
bone marrow
What is the cavity called in sponges?
Baby sponges are simply referred to as larva. At the larva stage, they swim around in the water, but full grown sponges attach themselves to reefs and don't swim or move around.
Do sponges or cnidarians have a gastovascular cavity?
No, they are from the Phylum Porifera.
How does digestion in cnidarians differ from digestion in sponges?
Digestion in cnidarians occurs through a gastrovascular cavity where food is captured using specialized cells called nematocysts, and partially digested within this central cavity. In contrast, sponges lack a digestive cavity and instead filter feed by drawing water through their porous bodies, trapping food particles with specialized cells called choanocytes. This means that cnidarians can digest food more actively and internally, while sponges rely on external filtering and cellular uptake for nourishment.
Why is the oral cavity not an internal body cavity?
Probably because you can visualize the same from out side. You can list the same in internal body cavity and you wont be wrong. Mostly because the mouth and the anus both lead to the external environment.
Does sponges a sponge get oxegyn from water?
Water is brought through cilia-lined pores into the hollow cavity of the sponge. As water passes through the pores, the cilia trap oxygen to breathe
What is the coelomic condition of the sponge?
The sponges are Acoelomates. That is they don't have coelom or body cavity.
What in is one of the cells in sponges that permits water to enter the cavity called?
ostia
Oral cavity and its extension which stretches through the body to the anus why not listed as an internal body cavity?
It's because the oral cavity all the way to the anus is "open" to the external environment. Internal body cavities are those that are completely walled off from the external environment by well defined structures such as skin, mysentary, etc. In contrast the GI tract is specifically designed to periodically open to the external environment an allow food to enter and waste to leave.
