4. कैनाल तंत्र पाया जाता है-
(अ) प्रोटोजाआ
(स) सीलेन्ट्रेटा
(ब
) पोरीफेरा
(द) आर्थोपोडा
Answers
Answered by
5
Answer:
पोरिफेरा is correct answer
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