Question

Is a sponge unicellular or multicellular?

Answer 1

Sponge:

1. Sponges are included in the phylum Porifera of the kingdom Animalia.
2. Sponges are also multicellular like other animals.
3. Their body is made up of multiple cells like choanocyte cells, pinacocytes and amoebocytes.
4. These are the most primitive types of animals.
5. Sponges are sessile.
6. Their body wall has only two layers ectoderm and endoderm, called diploblastic.