Category: Zoology

S.N Unicellular organisms Multicellular organisms 1. Made up of single cell. Made up of several cells. 2. There is no division of labour. There is...

multicellular, triploblastic, system grade of body organization. mostly bilaterally symmetrical except gastropods. mostly marine, some are found in fresh water whereas some are terrestrial. body...

exclusively marine. multicellular, system grade of body organization. triploblastic, coelomate and radially symmetrical. free living, free swimming or sedentary. star shaped, oval shaped, globular, or...

largest phylum of animal kingdom. found in every possible habitat of earth. multicellular, triploblastic, bilaterally symmetrical, metamerically segmented, system grade of body organization. jointed appendages...

multicellular, triploblastic, bilaterally symmetrical with system grade of body organization. mostly aquatic, found in sea water or fresh water, some are terrestrial and burrowing, few...

multicellular, triploblastic, bilaterally symmetrical with system grade of body organization. tube within tube body plan. mostly parasitic, few are free living found in sea water,...

multicellular, triploblastic, bilaterally symmetrical. first animals to have organ-system grade of body organization. body is dorsoventrally flattened so called flat worms. size varies from less...

multicellular with tissue grade of body organization. aquatic, mostly marine, few are found in fresh water. sedentary or free swimming. mostly radially symmetrical whereas few...

 Multicellular, eukaryotic with cellular grade of body organization. Aquatic, mostly marine few found in fresh water. Solitary or colonial, free living. Sedentary and sessile. May...

The characteristics of this phylum are as follows: Presence of notochord Presence of dorsal hollow (tubular) nerve cord. Presence of pharyngeal gill slits. Post anal...