Enteronephric nephridia of earthworm are conc | vedclass

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(D) In earthworms,nephridia are classified based on their opening into the body. $1$. Integumentary nephridia open directly to the exterior. $2$. Ente

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Osmoregulation

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(D) In earthworms,nephridia are classified based on their opening into the body. $1$. Integumentary nephridia open directly to the exterior. $2$. Enteronephric nephridia open into the alimentary canal (intestine). These nephridia discharge nitrogenous wastes into the gut,which are then eliminated along with the feces. This mechanism helps in the conservation of water,thus playing a significant role in osmoregulation.

Column-$I$	Column-$II$
$1$. Spermathecae	$a$. $6^{th}$ to $9^{th}$ segments
$2$. Typhlosole	$b$. $1^{st}$ to $3^{rd}$ segments
$3$. Buccal cavity	$c$. $26^{th}$ to $35^{th}$ segments in intestine
$4$. Pharyngeal nephridia	$d$. $4^{th}$ to $6^{th}$ segment

Enteronephric nephridia of earthworm are concerned with

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