They have been found to be older than the dinosaurs and they vary in size from the head of a needle to the size of a Basketball court.
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.
Polyp and medusa are two stages in life cycle of cnidarians , polyp is hydra like and medusa is jelly fish like .
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
Cnidarians have two cell layers with a jelly-like layer in between.
Polypoid Shape and Medusoid Shape
Yes. Both are phyla.
cnidarians have no nervous system