Question

What is the exoskeleton of phylum coelenterate made up of?

Answer 1

Coelenterata:

1. These species are usually found in saltwater, with only a few exceptions living in freshwater.
2. They have a core gastro-vascular cavity in their bodies.
3. They are multicellular organisms with distinct body designs.
4. They are symmetrical in all directions.
5. Calcium carbonate is used to make the exoskeletons.