13- Closed circulatory system was first developed in this group of
invertebrates:
*
O Annelida
O Arthropoda
O Mollusca
Echinodermata
Answers
Answered by
1
Answer:
it has developed in case of echinodermata
Explanation:
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Answered by
3
Answer:
Annelida
Explanation:
Annelida is the answer.
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