General characteristics
- Annelids are bilaterally symmetrical and vermiform animals.
- They are coelomates with metamerically segmented body.
- Body wall is dermo muscular
- Alimentary canal is tubular and generally straight.
- Body is formed of three regions
- They are moratorium,trunk and podium.
- Respiration occurs through General body surface
- Development is directing monotonous forms without any larval stage