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Why are coelenterates more advanced than sponges?
sponges are made up of individual cells. I dont know about colentrates. They just are what they are. sponges also don't move while coelenterates do.
Why colentrates called cilentrates?
Colentrates, commonly known as coelenterates, are called so because they possess a central body cavity, known as the coelenteron, which is involved in digestion and circulation. This term derives from the Greek word "koilos," meaning "hollow," reflecting their body structure. Coelenterates include organisms such as jellyfish, corals, and sea anemones, all of which exhibit radial symmetry and have specialized cells for capturing prey. The name highlights their unique anatomical features within the animal kingdom.
What is a jellyfish floating in a group called?
They aren't actually fish; they're plankton. Jellyfish have no bones, brain, or heart. To see light, detect smells and orient themselves, they have rudimentary sensory nerves at the base of their tentacles. from discovery kids.com
