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प्रश्न
Protonephridia is an excretory structure in all of the following, except ______.
विकल्प
Planaria
Rotifers
Crustaceans
Cephalochordates
MCQ
रिक्त स्थान भरें
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उत्तर
Protonephridia is an excretory structure in all of the following, except crustaceans.
Explanation:
The antennal glands and green glands are the excretory organs in crustaceans.
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