Question

To which phylum do sponges belong?

Answer 1

Phylum Porifera:

1. Sponges belong to the phylum Porifera.
2. They are usually found in saltwater, however, a few species, such as Spongilla, are found in freshwater.
3. They have a canal system or water transportation.
4. They are asymmetrical creatures.
5. These creatures have a hard outer covering, or skeleton, that protects them from predators.
6. The hard skeleton is made up of calcium carbonate spicules, silica spicules, and protein sponging fibers.