Phylum Cnidaria
Multicellular animals characterized by two cell layers, saclike digestive tract, tentacles, radial symmetry, and nerve net; e.g. jellyfish, sea anemones, and corals
Cnidarians
one of two principal body types occurring in members of the invertebrate animal phylum Cnidaria.
medusa
animals that live attached to the seabed for at least part of their life cycle.
sessile
Corals function like trees in the deep ocean difference to this
Hydroid
How is sargassum fish camouflaged
Cryptic camouflage
A stinging long part of the arm used for swimming
tentacle
may be solitary, as in the sea anemone, or colonial, as in coral, and is sessile (attached to a surface).
polyp
animals that fall under the phylum Cnidaria and the class Anthozoa.
coral
(1) a tiny free-swimming ciliated planula larva about 1 mm (0.04 inch) long, which settles and metamorphoses into (2) a sessile (attached), usually colonial polyp stage, which in turn liberates (3) a gamete-producing male or female medusa (“jellyfish”).
life cycle of Hydroid
Turtle that eats jellyfish?
by direct diffusion across surface membranes is efficient for organisms less than 1 mm in diameter.
gas exchange
free-swimming or crawling larval type common in many species of the phylum Cnidaria
planula
any scientific knowledge produced in the colonies, usually by professionals trained in the metropole
colonial
long tentacles
Ctenophora
Jellyfish compose of how much water?
95%
the extracellular matrix found in cnidarians like coral or jellyfish that functions as a hydrostatic skeleton
mesoglea
Life cycle of Jellyfish
(polyp) phase, (medusa) phase
plants or animals of different species may be dependent on one another for survival.
Symbiosis
this phylum has bioluminescence
phylum Ctenophora
hunt prey, defend against predators, find mates, and execute other vital activities.
Functions of Bioluminescence
the inner layer of cells that serves as a lining membrane of the gastrovascular cavity of Cnidarians.
Gastodermis
an exclusively marine class of animals with about 200 known species, includes all the jellies. The defining characteristic of this class is that the medusa is the prominent stage in the life cycle
Class Scyphozoa
polyps with a flower-like appearance
class anthozoa
cloning
The corals and these special cells have a mutualistic relationship.
Coral and Zooxanthellae