Question

In coelenteron with mouth surrounded by short.....​

Answer 1

Coelenterata is a term encompassing the animal phyla Cnidaria (coral animals, true jellies, sea anemones, sea pens, and their allies) and Ctenophora (comb jellies). ... 'hollow' and ἔντερον, enteron, 'intestine', referring to the hollow body cavity common to these two phyla.