Which among the following have open circulatory system? (i) Arthropoda (ii) Mollusca (iii) Annelida (iv) Coelenterata (a) (i) and (ii) (b) (iii) and (iv) (c) (i) and (iii) (ii) and (iv)
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
- Soln:
Answer is (a) (i) and (ii)
Explanation:
Annelida and Coelenterata have closed circulatory system where as Arthoropods and Mollusca have open circulatory system.
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