Medusa
No, a free swimming form of a cnidarian is called a medusa. Polyps are typically attached to a substrate and have a cylindrical body with a mouth surrounded by tentacles at one end. Medusae have a bell-shaped body with tentacles hanging down.
The cnidarian body form specialized for swimming is the medusa. Medusas are typically bell-shaped and have tentacles hanging down, allowing them to pulsate and propel themselves through the water. This form is often associated with the adult stage of jellyfish, which are well-known examples of swimming cnidarians. In contrast, the polyp body form is usually sessile and attached to a substrate.
A bell-shaped cnidarian adapted for swimming is known as a medusa. Medusae have a jelly-like, umbrella-shaped body with tentacles hanging down and are capable of free-swimming movements in the water. They are typically the adult form of cnidarians, with the polyp form being the stationary phase in the life cycle.
Cnidarians have simple structure; a blind ended gut, tentacles, a pharynx and several other minor organs, and gonads.
Medusae
Polyp
Medusa
polyp
a crazy guy named Steve
a crazy guy named Steve
a crazy guy named Steve
The form under the top of the mushroom.