An adult swimming cnidarian is called a 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.
polyp
medusa
polyp
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.
By swimming around and eating it: plankton,algea and such.
A Cnidarian is a stinging animal such as a jellyfish or a sea anenome. They have stinging cells that they use predatorially for food. There are two body scructures for cnidarians--polyps and medusas. A polyp is attached to something and does not move, and its mouth is at the top. A medusa is free-swimming, and its mouth is on the bottom.
The larva of the cnidarian, known as planula, moves by swimming.
Medusa
The two body forms in the phylum Cnidarian are the polyp and medusa. Polyps are usually stationary, with a cylindrical body and tentacles surrounding a central mouth. Medusas are free-swimming and have a bell-shaped body with tentacles hanging down.
it is called a planula. it is a free-swimmer