A) circulatory system of earthworm
B) digestive system of earthworm
C) excretory system of earthworm
D) reproductive system of earthworm
Correct Answer: B
Solution :
Typhlosole is a structure associated with the digestive system of earthworm. It is formed from the villi (larger) of intestine and hang in lumen of intestine, it run mid dorsally from 26th segment up to the last except posterior 24th and 25th segments. This structure divide intestine into pre-typhlosar, typhlosolar and post-typhlosolar three regions.
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