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Byju's Answer
Standard IX
Biology
Nemotoda
Roundworms be...
Question
Roundworms belong to the phylum ________.
A
Nematoda
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B
Porifera
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C
Platyhelminthes
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D
Annelida
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Solution
The correct option is
B
Nematoda
Roundworms belong to the phylum Nematoda. Their bodies are cylindrical. They are triploblastic and bilaterally symmetrical. They have a pseudocoelom.
So, the correct answer is option A.
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