Which of the following is a multicellular organism?

Explanation

The correct answer is Sponge. Key Points Sponges belong to the phylum Porifera. They are generally marine and mostly asymmetrical animals. These are primitive multicellular animals and have a cellular level of organization. ''Spongilla'' is a freshwater sponge . It is a member of the family Spongillidae It is generally found in lakes, ponds, and slow streams Additional Information Paramoecium is a single-celled freshwater animal that has a characteristic slipper-like shape and is covered with cilia. An amoeba often called an amoeboid , is a type of cell or unicellular organism which has the ability to alter its shape , primarily by extending and retracting pseudopods . Chlamydomonas is a genus of green algae consisting of about 150 species all unicellular flagellates, found in stagnant water and on damp soil, in freshwater, seawater, and even in snow as "snow algae".