General characteristics of phylum Annelida:
∙ (Annelus: little ring)
∙ Habitat: Mostly aquatic, some are terrestrial (0.5 marks)
∙ Symmetry: Bilateral symmetry(0.5 marks)
∙ Coelom: Coelomate (Body cavity is a true coelom)(0.5 marks)
∙ Body is metamerically segmented and the presence of rings is observed.(0.5 marks)
∙ Germ layer: Triploblastic(0.5 marks)
∙ Excretion: Nephridia(0.5 marks)