The nephridia,in earthworm,are analogous to

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(D) Nephridia are the excretory organs found in earthworms $(Pheretima)$.Flame cells (protonephridia) are the specialized excretory structures found i

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Flame cells of Planaria

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(D) Nephridia are the excretory organs found in earthworms $(Pheretima)$.Flame cells (protonephridia) are the specialized excretory structures found in flatworms like $Planaria$.Both nephridia and flame cells perform the same function of excretion and osmoregulation,although they have different evolutionary origins.Therefore,nephridia in earthworms are analogous to the flame cells of $Planaria$.

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