In order to avoid desiccation
Some things that prey on sponges are sea turtles, crustaceans, fish, and echinoderms. Sponges move so slow that they cannot avoid being eaten.
Not at all well. To be taken out of the water is pretty much a death sentence for a starfish.
To answer your question I need to know what THE HEAK A PERIWINKLE IS AND WHAT IS DESICCATION
Desiccation is used to describe an object which is in a state of extreme dryness. As an example, in the natural world desiccation is the drying out of a living object such as a fish out of water or crops in a drought.
No, sea sponges are not decomposers. Sponges are filter feeders.
no sponges are not unicellular.
no sponges do not have bones
No, sponges are not parasitic.
The cause of disc desiccation is from replacement of the hydrophilic glycosaminoglycans within the nucleus polyposis with fibrocartilage. It is considered a degenerative disorder.
Sponges are asymmetrical, although a few species have nearly radial symmetry.
To answer your question no sponges do not hibernate