Q.
Which of the following structures help in the removal of nitrogenous waste as well as concerned with osmoregulation?
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Excretory Products and their Elimination
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Solution:
Protonephridia, nephridia and Malpighian tubules all are the structures which help in the removal of nitrogenous waste as well as concerned with osmoregulation (i.e. regulation ionic and fluid volume). These structures are found in platyhelminths, annelids and insects, respectively.