At which of these segments does the nerve cord of the earthworm divide into two parts?(a) 5^th, 6^th(b) 8^th, 9^th(c) 3^rd, 4^th(d) 11^th, 12^thI have been asked this question during a job interview.My doubt is from Animals Structural Organisations in division Structural Organisations in Animals of Biology – Class 11

At which of these segments does the nerve cord of the earthworm divide

1.	At which of these segments does the nerve cord of the earthworm divide into two parts?(a) 5^th, 6^th(b) 8^th, 9^th(c) 3^rd, 4^th(d) 11^th, 12^thI have been asked this question during a job interview.My doubt is from Animals Structural Organisations in division Structural Organisations in Animals of Biology – Class 11
Answer» Correct choice is (C) 3^rd, 4^th For EXPLANATION: The NERVE cord of the earthworm bifurcates or divides into two parts at the 3^rd and 4^th segments. It then encircles the pharynx and forms the nerve ring by COMBINING with the cerebral ganglia.

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