Question

Differnces between parazoans and metazoans

Answer 1

The correct term is Protozoa. PROTOZOA : They are single celled organisms that are not an animal, plant, bacteria or fungi.A single cell performs all functions; therefore there is no division of You do not have access to view this node.They have a cellular grade of organization, e.g. Amoeba paramecium.Protozoans are always motile, as there are no protozoans that can survive by stationary filter-feeding, in contrast to the numerous animals such as sponges, corals etc. Motility is a biological term which refers to the ability to move spontaneously and actively, consuming energy in the process. Filter feeding is a method of feeding where small food particles are filtered from the surrounding water by various mechanisms.METAZOA :They are multi-cellular organisms.They show division as different cells or organs perform different functions.They have cellular You do not have access to view this node, organ and system grade of organization, e.g. Sponges to chordates.Metazoans include about 50 microns, like the blue whale (34m or 111ft), lions mane jelly fish (36.5 m or 120 feet), and Bootlac worm (55m or 180ft).