Given the question: Q: What type of invertebrates are jellyfish and corals known as? Read this paragraph and choose the correct option from the provided answers: Cnidarians are invertebrates such as jellyfish and corals. They belong to Phylum Cnidaria. All cnidarians are aquatic. Most of them live in the ocean. Cnidarians are a little more complex than sponges. Besides specialized cells, they have tissues and radial symmetry. There are more than 10,000 cnidarian species, see Figure below . Choices: - sponges - nautilus - cephalopods - cnidarians A:
The answer is:
cnidarians