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  • Which among the following have open circulatory system? (i) Arthropoda

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)

(d) (ii) and (iv)

Answers (1)

Answer- (a)

Solution: The open circulatory systems pump blood into a cavity called hemocoel with the blood diffusing back to the circulatory system between cells. This system lacks a true heart or capillarie E.g., Molluscs and Arthropods.

Annelida and Coelenterata have closed circulatory system.

The correct answer is a)- (i) and (ii)

 

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