Polyp and medusa are two stages in life cycle of cnidarians , polyp is hydra like and medusa is jelly fish like .
Cnidarians have two cell layers with a jelly-like layer in between.
small cnidarians and big cnidarians
Cnidarians come in two forms: a medusa has tentacles that hang down and polyps usually live attached to a surface.
The two types of true tissue found in cnidarians are the epidermis and the gastrodermis.
Polyps, which are Sessile or stationary, and Medusa which move.
polyp and medusa
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.
poly and medusa
Hydra - the polyp, anchored with a stalk, tentacles up; and medusa, the jellyfish, swimming free, tentacles down. All cnidarians have both stages, like larva and adult, but they spend more time in one of them and are known as that stage, for example anemones and jellyfish. Anemones have a tiny jellyfish dispersal stage, and jellyfish have a tiny polyp reproduction stage.
Polypoid Shape and Medusoid Shape
Yes. Both are phyla.
The answer is two stages.