Segmental ganglion is present from

How many giant fibers are found in earthworm?

Which one of the following is not a part of nerve ring of earthworm?

Cerebral ganglion supples nerves to

Ventral nerve cord consists of

Segmental ganglion is absent in segments

Number of segmental nerves are

7 th segments of earthworm are supplied by

2nd, 3rd and 4th sgments of earthworm are supplied by

In earthworm Nerve ring is present in

Which one of the following nervous system is absent in earthworm?

Supra pharyngeal ganglion (Cerebral Ganglion or, Brain) lies in

Circum pharyngeal connectives run 

Sub - pharyngeal ganglion lies in