A) commissural blood vessels
B) ventral blood vessel
C) supra oesophageal
D) lateral oesophageals
Correct Answer: D
Solution :
In Pheretima there is a pair of thin walled? nonmuscular. loop like blood vessels found in 10th and 11th segments. These vessels are known as anterior loops, carry blood from lateral oesophageals to supraoesophageal vessel.
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