Cnidarians come in two forms: a medusa has tentacles that hang down and polyps usually live attached to a surface.
1) cnidarians have bilateral symmetry, 2) there are 2 different forms(dimorphism) , a medusa and a polyp, 3) reproduction is asexual or sexual. 4) they have cnidoblasts, special cells that contain nematocysts, the cells that sting, and 5) they have an internal cavity, and a mouth where food comes in and out. digestion is extracellular.
Jellyfish
cnidarians are animals that look like plants and are found at the bottom of the ocean. they have tentacles that can sting you if you touch them
that they're richer and the cook is basically a gratified slave
Friction refers to the resistance that one surface or object encounters when moving over another. The two common forms of friction between two sliding surfaces are static friction and rolling friction.
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
Polyps, which are Sessile or stationary, and Medusa which move.
The two forms of Cnidarians are the Medusoid or mobile form (e.g. Hydra), and the Polyp or sessile form (e.g. Aurelia).
1. Polyp 2. Medusa
small cnidarians and big cnidarians
Organisms such as cnidarians, sponges and some fungi can reproduce .
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.
polyp and medusa
It's cnidarians
Polymorphism influences adaptive radiation of the cnidarians because the alternation of their forms between medusae and polyps lets it find the best fit in any environment.