First slide
Basis of Classification
Question

Blood is carried through arteries, veins and capillaries in

Easy
Solution

Pheretima (Annelida) has a closed blood vascular system and so blood is carried through arteries, veins and capillaries.

Pila (Mollusca) and Limulus (Arthropoda)  have open circulatory system.

Ascaris (Aschelminthes) has no circulatory system.

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