All Sources -
Updated Media sources (1) About encyclopedia.com content Print Topic
Demospongiae (Demospongea; phylum Porifera) A class of sponges which occur in both marine and freshwater environments. They have a leucon body structure. Both siliceous spicules and organic fibres may form a skeleton, but primitive types may lack skeletal support. This is the largest group of sponges and it first appeared in the Cambrian.
Demospongiae See DEMOSPONGEA.
More From encyclopedia.com
Gastrotricha , Gastrotricha (phylum Aschelminthes) A small class (or phylum in some classifications) of microscopic, pseudo-coelomate worms in which an excretory sy… West Marine Inc , West Marine, Inc. 500 Westridge Drive Watsonville, California 95076 U.S.A. (408) 728-2700 Fax: (408) 728-2736 Public Company Incorporated: 1993 Emplo… Sarcodina , Sarcodina (phylum Protozoa, subphylum Sarcomastigophora) A superclass of protozoa which form pseudopodia for feeding and locomotion. There are three… Luis Munoz Marin , Munoz Marin, Luis: 1898-1980: Governor, Statesman Widely recognized as "the father of modern-day Puerto Rico," Luis Munoz Marin served as the island'… Marine Mammals , █ JULI BERWALD The U.S. Navy has used marine mammals, or cetaceans, for military purposes since the late 1950s. Atlantic bottle-nose dolphins, Pacifi… Marine , ma·rine / məˈrēn/ • adj. of, found in, or produced by the sea: marine plants marine biology. ∎ of or relating to shipping or naval matters: marine in…
You Might Also Like