actually its easy
yes
Well, the main predator of the sponge is the nudibranch (or sea slug). There are more predators, but you have to research a lot to find them out.
the giant australian hedgehog
sponges use toxins to repel would be predators
Hawk bill turtles , sea slugs , and turtles
Many sea sponges, like anemones, use toxins to repel would-be predators. Some species of sea slugs, however, such as Platydoris scabra, have evolved immunity against the toxins of specific sponge families (in this case, Microcionidae). This adaptation benefits the slugs in two ways. First, they don't have to compete with many other organisms for the sponges. The sea slugs can also concentrate the sponge toxins to foil their own predators -- at least until the slugs' predators also evolve immunity to the toxins.
Yes, Sponge's are the simplest of animals. They don't have a blood system or digest food. All they require is water passing through it's holes in order for it to be maintained. Also Sponge's cannot escape from predators as they are usually connected to a rock.
Spicules provide support to the sponge. In fact, a spicule is defined as any (of various shapes and sizes, depending of the sponge) small calcareous or siliceous body embedded along the sponge's cells.
as long as there is no predators and enough stuff to sustain life.
Red beard sponges are eaten by Sea slugs, starfishes, and sea turtles.
They only have a few predators due to their elaborate skeletal framework and noxious chemicals. Angelfish and hawk-billed sea turtles are the main two
are sponge cakes made out of a sponge? what color is a sponge cake? have i ever had a sponge cake? why is it called a sponge cake? answers to questions above: are sponge cakes made out of a sponge- no. what color is a sponge cake- depends on the flavor. have i ever had a sponge cake- no. why is it called a sponge cake- because he flakey spongy feeling of the sponge cake and the sponge cake feels and looks like a sponge. tell me if this helps on sponge cakes or your research on sponge cakes. thankyou :]