In which segments of the earthworm are the se | vedclass

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(D) In the earthworm ($Pheretima$ $posthuma$),the body cavity is divided into compartments by transverse partitions called septa.These septa are absen

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Both $(B)$ and $(C)$

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(D) In the earthworm ($Pheretima$ $posthuma$),the body cavity is divided into compartments by transverse partitions called septa.These septa are absent in the first four segments of the body.Additionally,the septa are also absent in the $9^{th}$ and $10^{th}$ segments to accommodate the gizzard and stomach,respectively.Therefore,both the first four segments and the $9^{th}$ and $10^{th}$ segments lack septa.

In which segments of the earthworm are the septa absent?

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