WebThe class Anthozoa (under the phylum Cnidaria) includes corals, anemones, sea pens and seafans. Anthozoa consists of 10 orders and thousands of species. Adults are attached to the seabed, but their larvae are free-floating and can drift to new settlements. It is estimated that most coral reefs are between 5,000 and 10,000 years old, with some ... WebMay 7, 2015 · The main difference between jellyfish and sea anemone are their shapes. Jellyfish are a free-floating medusa shape while anemone are a polyp that remain anchored to the sea floor or rocks or coral.
What is the difference between jellyfish and starfish?
WebFeb 27, 2011 · Difference between jellyfish starfish? Jellyfish can sting you generally. Starfish cannot. Jellyfish are cnidarians and starfish are echinoderms. Jellyfish are 95% water. Starfish are not. Jellyfish can sometimes get quite huge, weighing over 500 pounds and some jellyfish have tentacles 100 feet long. Starfish don't get that big. Their diet is ... WebJun 30, 2024 · Jellyfish are classified as Cnidarians because they have tentacles that sting. They are basic organisms with a thin layer of skin and a primitive digestive system. Most species are extremely small, but some have tentacles up to 100 feet. While Starfish are solid creatures, the jellyfish is very slight. new chew race
What are the differences in the external features of a sea ... - Answers
WebJul 4, 2024 · While Starfish are solid creatures, the jellyfish is very slight. It is 95 percent water. Starfish: Starfish, also known as sea stars, are classified as echinoderms because their bodies are made of calcium carbonate components called ossicles. Starfish, which can regenerate limbs, can have anywhere between five and 50 arms depending on the species. WebMar 2, 2024 · cnidarian, also called coelenterate, any member of the phylum Cnidaria (Coelenterata), a group made up of more than 9,000 living species. Mostly marine animals, the cnidarians include the corals, hydras, jellyfish, Portuguese men-of-war, sea anemones, sea pens, sea whips, and sea fans. The phylum Cnidaria is made up of four classes: … WebMay 31, 2024 · Starfish noun. (obsolete) Any many-armed or tentacled sea invertebrate, whether cnidarian, echinoderm, or cephalopod. Jellyfish noun. A cnidarian, a member of … internet availability att