Medusa
The free floating body form of cnidarians is called a medusa. Medusae have a bell-shaped body with tentacles hanging down, and they are often seen swimming in the water. Examples include jellyfish and hydromedusae.
The body systems that cnidarians have take two forms. The main body forms are medusa and polyp. Cnidarians do not have a transport system and the body surface is used for gaseous exchange.
Cnidarians are segmented into two main classes: Anthozoa (sea anemones and corals) and Medusozoa (jellyfish and hydrozoans), based on their body forms. Anthozoa are generally sedentary, with a polyp body form, while Medusozoa are typically free-swimming with a medusa body form.
No. Cnidarians do not have teeth or any hard body parts.
like spokes on a wheel
It's a "polyp" bro.
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cnidarians
No. Cnidarians don't even have a circulatory system.
Freefloating and submerged aquatic plants.
like spokes on a wheel