Sea sponges

What are sea sponges?

Sea sponges are the most primitive of the multicelled animals. The scientific name or another name for sea sponges is phylum porifera.

What are sea sponges made of?

Sea sponges are made up of porous masses of cells. Sea sponges possess no organs such as a mouth or stomach. Sea sponges do not even have real tissues such as skin. Sea sponges are simply porous masses of cells which continuously absorb and expel water through themselves.

Flagella

What are flagella?

Flagella are tiny whiplike structures of cells of sea sponges.

Function of the flagella

Flagella maintain the current of seawater and also trap food particles carried inside. The flagella bodies are stiffened by skeleton of minute needle like spicules, a meshwork of spongin fibers or a combination of both. 

Sponges

Click here for a diagram of a sea sponge