Which of the following structures is common b | vedclass

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(D) In both cockroaches $(Periplaneta 	ext{ } americana)$ and earthworms $(Pheretima 	ext{ } posthuma)$, the nervous system is organized into a vent

Vedclass · Accepted Answer

Ventral nerve cord

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(D) In both cockroaches $(Periplaneta 	ext{ } americana)$ and earthworms $(Pheretima 	ext{ } posthuma)$, the nervous system is organized into a ventral nerve cord.In earthworms, the nerve cord is solid, double, and ventral, extending along the entire length of the body.In cockroaches, the nervous system consists of a series of fused segmental ganglia joined by paired longitudinal connectives on the ventral side.Therefore, the ventral nerve cord is a common structural feature.

Column-$I$	Column-$II$
$1$. Smooth muscles	$p$. Hard and not pliable ground substance
$2$. Skeletal muscles	$q$. Blood vessel,stomach,intestine
$3$. Bone	$r$. Chondroblast
$4$. Cartilage	$s$. $A$-band

Which of the following structures is common between a cockroach and an earthworm?

Similar Questions

Match the following:
Column-$I$ Column-$II$
$1$. Smooth muscles $p$. Hard and not pliable ground substance
$2$. Skeletal muscles $q$. Blood vessel,stomach,intestine
$3$. Bone $r$. Chondroblast
$4$. Cartilage $s$. $A$-band

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$(i)$ Epithelial tissue
$(ii)$ Connective tissue
$(iii)$ Muscular tissue
$(iv)$ Neural tissue

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