Sponges

Sea sponges, despite lacking eyes, mouth, or heart, are classified as animals because they cannot produce their own food. They capture food through their porous structure, which allows water to flow through and trap tiny plants and animals. Historically, sponges have been harvested for their absorbent properties, useful for cleaning. Today, synthetic sponges replicate these properties, offering a reusable cleaning tool. The design of synthetic sponges is inspired by the natural sponge's ability to absorb and capture food.

What role do tiny plants and animals play in the sponge's feeding process?

How have synthetic sponges been designed in relation to natural sponges?