The reasons why any animal eats a particular organism is never clear. A top reason why Nudibranchs might eat 'toxic sponges' is that there was not much else available to eat and it was easy to eat the sponges. These sponges were a niche that was unfilled and the Nudibranches adapted to take it. The sponges are still partially toxic to Nudibranchs! They often have specially lined stomachs to protect them from the sponges sharp spicules and the toxins from the sponge accumulate in them. When a predator tries to eat a nudibranch it gets a nasty mouthful of these toxins.
No, sea sponges are not decomposers. Sponges are filter feeders.
no sponges do not have bones
no sponges are not unicellular.
No, sponges are not parasitic.
The purple tube sponge is also called the Aplysina lacunosa. They grow to be three to five feet long. They can live in clusters of ten or more, and these clusters can be more than six feet long.
Sponges are asymmetrical, although a few species have nearly radial symmetry.
Yes sponges have organs.
No. Sponges are animals, which are heterotrophic.
To answer your question no sponges do not hibernate
No sponges lack organized multicellular organs, such as nerves and muscles.
niche