What is the offense and defense mechanism of spongilla?

Spongilla, a freshwater sponge, primarily relies on its porous body structure as a defense mechanism, which helps to filter out unwanted particles and potential predators while allowing water to flow through for feeding. Its offense mechanism is largely passive; it does not actively hunt but instead captures food particles from the water using specialized cells called choanocytes. Additionally, spongilla can produce toxic substances that deter predators, providing further protection against threats. These adaptations enable spongilla to thrive in its aquatic environment.