Cnidaria is a phylum containing over 10,000 species of animals found
exclusively in aquatic ... They have two basic body forms: swimming medusae
and sessile polyps, both of which are radially symmet...
Why wouldn't a jellyfish form a fossil? ... What is the sessile body form of a
cnidarian? ... It is called a jellyfish because it lives in the sea, although it isn't a
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 ...
It includes aquatic organisms such as jellyfish, sea anemones, corals, and hydras
. ... is surrounded by tentacles and leads to an internal digestive cavity called the
.... The sessile hydroid, or polyp, form is more or less cylindrical, attached to its ...
polyp and medusa names for the two body forms, one nonmotile and one
typically ... The polyp is a sessile, or nonmotile, organism; well-known solitary
polyps are the sea ... The medusa, when free swimming, is popularly known as a
jellyfish. ... with nonliving material, forming a plantlike structure called a hydroid
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
Most scyphozoan jellyfishes—including most of the large jellyfish with which ... a
sessile (i.e. fixed-position), usually benthic (i.e. bottom dwelling) polyp called a ...
In zoology, one of two principal body forms occurring in members of the animal
phylum Cnidaria. ... sea anemone, or colonial, as in coral, and is sessile (
attached to a surface). ... tentacles that bear complex stinging structures called
nematocysts. ... Mostly marine animals, the cnidarians include the corals, hydras,
Apr 6, 2015 ... The sessile polyplike forms constitute the order Stauromedusae. ... region, but
members of the genus Rhizostoma, also called football jellyfish, ...
Animals from the phylum Cnidaria have stinging cells called cnidocytes. ...
perhaps the most well-known medusoid animals are the jellies (jellyfish). Polyp
forms are sessile as adults, with a single opening to the digestive system (the