Many live on coral reefs and have symbiotic relationships with other reef species. ![]() Sponges have specialized cells and an endoskeleton, but they lack tissues and body symmetry. What are 2 characteristics that sponges and cnidarians have in common What 2 characteristics make them different? Do all cnidarians live in water?Ĭnidarians are invertebrates such as jellyfish and corals. Both organisms are found in aquatic ecosystems. Sponges and Cnidarians are very primitive acoelomic invertebrates with very simple body structures. Sponges vs Cnidarians One interesting difference between sponges and cnidarians is that sponges lack tissue while cnidarians have tissues but not the organ systems. How are sponges and cnidarians different? Sponges and cnidarians were the first animals to evolve because they have primitive and simple body structure. Why were sponges and cnidarians the first animals to evolve? Besides specialized cells, they have tissues and radial symmetry. Cnidarians are a little more complex than sponges. 5 How does a sponge reproduce sexually and asexually?.4 How are sponges and cnidarians similar to each other?.3 What is to be the first animals to evolve?.1 Where do sponges and cnidarians live?.
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