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Jellyfish - Wikipedia


Jellyfish or jellies are softbodied, free-swimming aquatic animals with a gelatinous ... A group of jellyfish is sometimes called a bloom or a swarm. .... Staurozoa (stalked jellyfish) are character...

What is a sessile form of a jellyfish called - Answers.com


It is called a jellyfish because it lives in the sea, although it isn't a fish. The "jelly" comes from the texture of its body, which is wet and slimy, similar to jelly.

Cnidaria - jelly fish, polyps and medusae - Bumblebees


Cnidaria - jelly fish, polyps and medusae taxonomy, physiology, and body pattern . ... sexually from medusae. Most medusae are mobile and the polyps tend to be sessile. ... They are located in special cells called cnidocytes. There are over ... Some species form a symbiotic relationship with green algae. Many species are ...

Jellyfish and Other Cnidarians - mesosyn.com


They have two basic body forms: swimming medusae and sessile polyps, .... The true jellyfish, like Aurelia, are so-called because the bulk of their bodies are ...



Sea anemones and corals have the polyp form, while jellyfish are typical medusae. ... Cnidarians are classified into four main groups: non-moving (sessile ) ... layers (the ectoderm and the endoderm) separated by a jelly-like layer called the ...

sponges & cnidarian notes b1 - Biology Junction


Flagellated cells called choanocytes or collar cells line their internal body cavity ... Polyp forms are usually sessile with upright tentacles arranged around the mouth at the top and ... Jellyfish & Portuguese man-of-war are medusa form as adults.

Phylum Cnidaria- Online Textbook Chapters - Alyvea.com


Animals from the phylum Cnidaria have stinging cells called cnidocytes. ... The sessile polyp form has, in fact, two types of polyps, shown in [link]. ... species, whereas the scyphozoans (jellyfish) and cubozoans (box jellies) are swimming forms.

polyp and medusa facts, information, pictures | Encyclopedia.com ...


The polyp is a sessile, or nonmotile, organism; well-known solitary polyps ... The medusa, when free swimming, is popularly known as a jellyfish. ... In addition to this elaborate means of reproduction, the polyp can form new polyps by budding. ... with nonliving material, forming a plantlike structure called a hydroid colony.

Cnidaria (Jellyfish, Anemones, Corals and Hydras) - Exploring Nature


jellyfish, hydra, sea anemones, and corals. Though these vary greatly, ... The “ polyp” form is usually anchored (sessile) with the mouth facing upward. ... These layers surround an inner cavity called the gastrovascular cavity. The epidermis ...

Phylum Cnidaria


Jellyfish pulse gracefully through the water. Polyps bend to ... Stinging cells called cnidocytes contain coiled nematocysts ... Sessile and motile forms. Polyp is ...