The nerve chord in earthworm originates from

Question

The nerve chord in earthworm originates from (A) supra-pharyngeal ganglia and has a fused pair of ganglia in each segment from the 3th to the last (B) supra: pharyngeal ganglia and has a fused pair of ganglia in each segment from the 4th to the last (C) sub-pharyngeal ganglia and has fused pair of ganglia in each segment from the 5th to the last (D) sub-pharyngeal ganglia and has a fused pair of -ganglia in each segment from the 6th to the last

Tardigrade Admin · Accepted Answer

The ventral nerve cord in earthworm originated from the sub-pharyngeal ganglia and has fused pair of ganglia in each segment from the 5th to the last.

Q. The nerve chord in earthworm originates from

supra-pharyngeal ganglia and has a fused pair of ganglia in each segment from the 3th to the last

supra: pharyngeal ganglia and has a fused pair of ganglia in each segment from the 4th to the last

sub-pharyngeal ganglia and has fused pair of ganglia in each segment from the 5th to the last

sub-pharyngeal ganglia and has a fused pair of -ganglia in each segment from the 6th to the last

The ventral nerve cord in earthworm originated from the sub-pharyngeal ganglia and has fused pair of ganglia in each segment from the 5th to the last.