In Pheretima,nephridia occur in: | vedclass

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(A) In $Pheretima$,nephridia are segmentally arranged excretory organs.They are classified based on their location as septal,integumentary,and pharyng

Vedclass · Accepted Answer

All segments except $1-3$ and the last segment

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(A) In $Pheretima$,nephridia are segmentally arranged excretory organs.They are classified based on their location as septal,integumentary,and pharyngeal nephridia.Nephridia are absent in the first three segments $(1, 2, 3)$ and the last segment.While most nephridia are of the micronephridia type,the septal nephridia are often considered meganephridia due to their larger size compared to others.

Column-$I$	Column-$II$
$P$. Septal nephridia	$I$. Enteronephric
$Q$. Integumentary nephridia	$II$. Exonephric
$R$. Pharyngeal nephridia

In $Pheretima$,nephridia occur in:

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Match the following columns regarding the types of nephridia in earthworms:

Column-$I$ Column-$II$

$P$. Septal nephridia $I$. Enteronephric

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Which of the following structures is found in the $7^{th}$ and $9^{th}$ segments of $Pheretima$?

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