plankton
They can reproduce sexually and asexually.
yes we as humans are destroying sponge and that makes us a preditor to these sponges
all sponges dont have teeth, so they eat small plankton.
yes they do
They eat bacteria, plankton and detritus.
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.
There are 6 different types of sea sponges, the tube sponge, vase sponge, yellow sponge, bright red tree sponge, painted tunicate sponge, and the sea squirt sponge.
they filter feed
nutrients from the water
zooplankton
They eat sea sponges and are carnivorous.