16 terms

Georgia Virtual Learning: Marine Invertebrates Terms

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Zooplankton
Heterotrophic or detritivorous microscopic invertebrate animals that drift in the water.
Meroplankton
Organism that are plankton temporarily such as larvae
Haloplankton
Organisms that spend their entire lives as plankton.
Bryozoans
Small aquatic animals that form moss-like or branching colonies
Porifera
An animal phylum comprising the sponges
Detritus
Small particles of dead or decaying organisms
Coelenterate
Animal phylum-group which contains hydras, jellyfish, sea anemones, and corals
Cnidaria
Animal phylum that has characteristic stinging structures
Ctenophora
Animal phylum of the comb jelly
Echinodermata
Animal phylum with exoskeletons, often covered with spines and radical symmetry (sea stars, urchins, cucumbers, and sand dollars.)
Mollusca
Invertebrate animal phylum with mantle and soft unsegmented body
Arthropoda
An animal phylum consisting of organisms with a segmented body, jointed limbs, and a shell made of chitin.
Chordata
Animal phylum consisting of organisms with a dorsal nerve cord, notochord, and gill slits.
Cephalopod
Marine mollusks with an ink sac, such as octopus, squid, and cuttlefish
Bivalve
A mollusk with two hinged valves such as an oyster, clam, scallop, or mussel
Gastropod
Mollusks with a single coiled shell, muscular foot, and eyes and feelers (snail, limpets, slugs)