Ascaris (roundworm) is:

Diploblastic

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Triploblastic

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Monoblastic

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Ablastic

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Solution

The correct option is B Triploblastic
Ascaris belongs to the phylum Nematoda. It is also commonly known as roundworms. Roundworms are triploblastic which means their bodies have three primary germ layers. Roundworms are bilaterally symmetrical and they possess a pseudocoelom (true body cavity not present).
So, the correct answer is option B.

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