Medusa

medusa freeswinnimg stage of certain coelenterates, jellyfish Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...

medusa 1. The gorgon; or one of the Gorgons whose hair was changed into serpents, after which all who looked upon her were turned into stone. (Science: zoology) Any free swimming acaleph; a jellyfish.

medusa The floating, flattened, mouth-down version of the cnidarian body plan. The alternate form is the polyp. megapascal (MPa) ...

medusa The motile bell-shaped form of body plan in cnidarians; e.g., jellyfish. megakarocytes Cells found in the bone marrow that produce platelets.

medusa A jellyfish, or the free-swimming stage in the life cycle of cnidarians. megacity See megalopolis. megacolon Flabby distended colon caused by chronic Chagas' disease.

They have one of two basic body plans both of which are radially symmetrical, the medusa and polyp (an upside down medusa). The jellyfish is a medusa and a sea anemone is a polyp.

Scyphozoa Jellyfishes (the medusa stage is dominant). The jelly of the medusa is a much-enlarged mesoglea. Anthozoa Sea anemones and corals. Have only the polyp stage. External Link Site devoted to the Cnidaria with illustrations ...

[3] Haeckel's wife, Agnes, died in 1915, and Ernst Haeckel became substantially more frail, with a broken leg (thigh) and broken arm.[3] He sold the mansion Medusa ("Villa Medusa") in 1918 to the Carl Zeiss foundation.

See also: Long, Tissue, Action, Class, Cells