Web Results

Cnidaria

en.wikipedia.org/wiki/Cnidaria

Cnidaria is a phylum containing over 10,000 species of animals found exclusively in aquatic ... Some, however, omit either the polyp or the medusa stage. .... the polyp and medusa forms, or of zooid...

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

www.encyclopedia.com/topic/polyp_and_medusa.aspx

polyp and medusa names for the two body forms, one nonmotile and one typically ... In such organisms the polyp, by budding, gives rise to medusae, which either ... the polyp exists, as in the hydra and the sea anemone, the organism has the ...

The Anemones, Corals and Jellyfish (Phylum Cnidaria)

www.earthlife.net/inverts/cnidaria.html

4)Two different forms exist, medusa and polyp 5)Reproduction ... The Cnidocyst has either a modified flagellum called a Cnidocil, or a cone as a sensory trigger.

Cnidarians - Acadia's Oceanside Meadows Inn

www.oceaninn.com/wildlife/cnidarians.htm

In the Medusoid form, the organism is essentially upside-down, with the mouth and ... They live either as solitary polyps, such as sea anemones, or in colonies of polyps, ... Most hydroids alternate between a polyp and a medusa stage, although not all ... They exist only in the polyp stage and obtain their food by filter feeding.

Cnidarian Structure and Function ( Read ) | Biology | CK-12 ...

www.ck12.org/biology/Cnidarian-Structure-and-Function/lesson/Cnidarian-Structure-and-Function-Advanced-BIO-ADV/

Dec 11, 2015 ... Both polyp and medusa forms consist of a digestive sac, the ... Medusae are usually free-swimming and either propel themselves using ... A hydrostatic skeleton is maintained by the internal pressure of fluids within the organism. ... Most anthozoan species exist exclusively in the polyp form and do not ...

Invertebrates | List, Characteristics of Invertebrates | Biology ...

biology.tutorvista.com/organism/invertebrates.html

The main characteristic that separates invertebrates from other organisms is the ... Cnidarians exhibit two basic body forms called polyp and medusa. ... Habitat - They may be aquatic either marine or fresh water; or terrestrial; free-living and ...

Chapter 26: Sponges, Cnidarians, Flatworms, and ... - Glencoe

www.glencoe.com/sec/science/ose/bdol2005/ca/docs/chap26.pdf

You will identify and compare and contrast the ... Filter feeding is a method in which an organism feeds by filtering small ..... Polyp form has a tube-shaped body with a mouth surrounded by tentacles. .... either the polyp or medusa stage. Polyps ...

Can a Jellyfish Unlock the Secret of Immortality? - The New York ...

www.nytimes.com/2012/12/02/magazine/can-a-jellyfish-unlock-the-secret-of-immortality.html

Nov 28, 2012 ... The "immortal jellyfish" can transform itself back into a polyp and begin life anew. ... depending on their stage in the life cycle, resemble either a jellyfish or a soft coral. ... Among the hundreds of organisms he collected was a tiny, relatively .... A Turritopsis medusa, however, sinks to the bottom of th...

Phylum Cnidaria: Hydra

www.william-hogarth.de/PhylumCnidaria.html

Many members of the phylum exist only in one form or the other. ... Compare this organism with that that of Metridium, a marine polyp known as a sea anemone ( Perry & Morton, Fig. 90c) ... Can you identify the gastrodermis and epidermis? ... A container of small organisms (either the multicellular arthropod Daphnia or the  ...

Evolutionary crossroads in developmental biology: Cnidaria ...

dev.biologists.org/content/138/8/1447

In anthozoans, the polyp is the gamete-producing form and the cycle is embryo> larva>polyp. .... The outer tissue layer of a cnidarian polyp, larva or medusa. ... A germ layer in animal embryos that can give rise to either endoderm or mesoderm. .... cell type diversity exists in cnidarians than is indicated by morphology alone.

More Info

Cnidaria

www.mesa.edu.au

Sea anemones and corals have the polyp form, while jellyfish are typical ... small (or thin) organisms (ones which have a large surface area compared to their ... These individuals (called zooids) can either be directly connected by tissues ... reproduction often involves a complex life cycle with both polyp and medusa stages.

polyp and medusa: Reproduction - Infoplease

www.infoplease.com

Reproduction In organisms that exhibit both forms, such as members of the ... In such organisms the polyp, by budding, gives rise to medusae, which either detach ... the polyp exists, as in the hydra and the sea anemone, the organism has the ...

Cnidaria, Marine Aquariums and Coral Reef Aquarium Tank, Stand ...

www.aquarium-design.com

All Cnidarians (anemone like organisms) share a similar body plan. ... of Cnidarians exists as either a polyp or medusa that help taxonomists identify them . ... They may occur as microscopic attached forms, or be fifty feet long and live in the ...