Esponjas

Sea sponges, despite lacking eyes, mouth, or heart, are classified as animals because they cannot produce their own food. They are porous, allowing them to absorb water and capture food through small pores. Sponges have been used by humans for centuries due to their absorbent nature. Today, synthetic sponges replicate these properties for practical use.

Why is a sea sponge classified as an animal?

• Because it has eyes

• Because it captures its food

• Because it can make its own food

• Because it has a heart

What allows a sea sponge to absorb water?

• Its smooth surface

• Its color

• Its porous structure

• Its large size

How do sea sponges expel waste?

• Through their internal network

• By changing color

• By moving to a different location

• Through their pores

Why have people harvested sponges for centuries?

• For their medicinal properties

• For their ability to absorb water

• For their decorative appearance

• For their unique color

What is a key feature of synthetic sponges?

• They are made from natural materials

• They are non-absorbent

• They are not porous

• They mimic the properties of natural sponges