Which phylum shows bilateral symmetry and no body cavity?

Coelenterate

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Platyhelminthes

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Aschelminthes

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Annelida

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Solution

The correct option is B Platyhelminthes
The phylum that shows bilateral symmetry and lacking a true coelom is Platyhelminthes.
Bilateral symmetry means when one organism is cut, it divides into two equal halves from a single plane only.
Platyhelminthes do not have a body cavity ,that is they do not have a coelom and are acoelomates.
Hence, the correct answer is 'Platyhelminthes'.

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