Which of the following is a common feature fo | vedclass

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(B) Both cockroaches $(Periplaneta 	ext{ } americana)$ and earthworms $(Pheretima 	ext{ } posthuma)$ possess a solid, ventral nerve cord as part of

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Solid and ventral nerve cord

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(B) Both cockroaches $(Periplaneta 	ext{ } americana)$ and earthworms $(Pheretima 	ext{ } posthuma)$ possess a solid, ventral nerve cord as part of their nervous system. Cockroaches have an exoskeleton made of chitin, whereas earthworms do not. Nephridia are the excretory organs of earthworms, while Malpighian tubules are the excretory organs of cockroaches. Therefore, the presence of a solid and ventral nerve cord is the common feature.

Which of the following is a common feature found in both cockroaches and earthworms?

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