In earthworm,the dorsal wall of the intestine from the $26^{th}$ segment to $95^{th}$ segment forms a median internal fold called
- ATrochophore
- BTyphlosole
- CClitellum
- DTrachea
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Similar Questions
In which of the following are the nephridial funnels (nephrostomes) present?
Medium
View SolutionChoose the correct pair regarding the anatomy of an earthworm:
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
| 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 |
Easy
View SolutionIn earthworms,in which segments are the blood glands located?
Easy
View SolutionIn $Pheretima$,there are red-coloured round bodies in the $4th$,$5th$,and $6th$ segments above the alimentary canal. They are believed to be involved in:
Easy
View SolutionWhich of the following is an exonephric nephridium?
Medium
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