Author/Authors :
Nosrati ، Hamed نويسنده Kermanshah University of Medical Sciences, Kermanshah, Iran. , , Nosrati، Masoud نويسنده Young Researchers Club, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran Nosrati, Masoud , Karimi، Ronak نويسنده Eslamabad-E-Gharb branch, Islamic Azad University, Eslamabad-E-Gharb, Iran ,
Abstract :
In this paper we have introduced phylum Annelida. There are over 22,000 living annelid species. [1][2] Their body is segmented. Their respiration is via skin or gills. Some of them have sexual reproduction and some of them have asexual reproduction. They have brain and nerve cords. Feeding and excretion of annelids have been investigated in this paper.
