NEETBotanyAnimal Kingdom
What type of circulatory system is present in annelids?
Options
- Aopen circulatory system
- Bclosed circulatory system
- Cno circulatory system
- Dboth open and closed circulatory system
Correct answer
B. closed circulatory system
Step-by-step solution
Annelids have Nephridia which help in osmoregulation and excretion.Annelids possess both longitudinal and circular muscles that help in locomotion Annelids possess a closed circulatory system. Aquatic annelids like Nereis possess lateral appendages called parapodia, which help in swimming.They may be aquatic (marine and fresh water) or terrestrial; free-living, and sometimes parasitic. They exhibit organ-system level of body organisation and bilateral symmetry. They are triploblastic, metamerically segmented and co