Question:medium
Open Circulatory system is present in:
Open Circulatory system is present in:
Updated On: Nov 26, 2025
- Palaemon, Nereis, Balanoglossus
- Hirudinaria, Bombyx, Salpa
- Anopheles, Limax, Limulus
- Pheretima, Musca, Pila
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The Correct Option is C
Solution and Explanation
An open circulatory system, lacking blood vessels, allows haemolymph to directly perfuse tissues. Organisms such as Anopheles (mosquito), Limax (slug), and Limulus (horseshoe crab) exhibit this system. Anopheles and Limulus are arthropods, which possess open circulatory systems. Limax is a mollusc; most molluscs, excluding cephalopods, also have open circulatory systems. Conversely, Nereis, Balanoglossus, Hirudinaria, Salpa, Pheretima, Musca, and Pila feature closed circulatory systems.
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