Which one of the following groups of animals is bilaterally symmetrical and triploblastic?

Sponges

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Aschelminthes (Roundworm)

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Ctenophores

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Coelenterates (Cnidarians)

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Solution

The correct option is B
Aschelminthes (Roundworm)

Aschelminthes (Roundworm) is triploblastic, and it is bilaterally symmetrical.

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Similar questions

Which of the following groups of animals is bilaterally symmetrical and triploblastic?

(i)	Diploblastic :	Poriferans, Coelenterates
(ii)	Triploblastic :	Platyhelminthes to Chordates
(iii)	Acoelomata :	Poriferans, Coelenterates, Platyhelminthes
(iv)	Pseudocoelomata :	Aschelminthes/Roundworms
(v)	Eucoelomata :	Annelids to Chordates

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