What is the median mid dorsal line present along the length of an earthworm?(a) Dorsal blood vessel(b) Dorsal root ganglion(c) Prostomium(d) ClitellumI had been asked this question in class test.My question is based upon Animals Structural Organisations topic in section Structural Organisations in Animals of Biology – Class 11

What is the median mid dorsal line present along the length of an eart

1.	What is the median mid dorsal line present along the length of an earthworm?(a) Dorsal blood vessel(b) Dorsal root ganglion(c) Prostomium(d) ClitellumI had been asked this question in class test.My question is based upon Animals Structural Organisations topic in section Structural Organisations in Animals of Biology – Class 11
Answer» Right option is (a) Dorsal blood vessel The best explanation: The dorsal blood vessel is present along the LENGTH of the EARTHWORM’s BODY. It is seen as a DARK MEDIAN line. Prostomium covers the mouth while clitellum is a band of glandular tissue covering the 14^th to 16^th segments.

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