chemical mechinism. REALEASING CHEMICALS IN THE WATER TO THE ATTACKER AND KILLS OR HURTS THE ATTACKER SO IT WILL EITHER DIE, OR GO AWAY.
check the encyclopedia,internet, etc.
Sponges protect themselves with spikes in their body.
they taste bad
they use their pineapple they live in :)
Some sponges protect themselves and they don't even know it. Those sponges protect themselves by a hard outer layer of skin.
Porcupines defend themselves with their quills.
They are rasied themselves bacause sponges are not family oriented, and eat to much pie.
They defend themselves by releasing disgusting slime when attacked.
Porcupines defend themselves with their quills.
With spicules and spongin
These types of animals are typically stationary because they are suspension feeders that acquire their food by filtering water. Sponges are anchored in place, so they cannot escape from predators, instead they secrete toxins and antibiotics to defend themselves from infections and attackers.
They run away from predators or may defend themselves using their horns.