Which of the following groups of animals is b | vedclass

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(A) $1$. Bilateral symmetry refers to the body plan where the body can be divided into identical left and right halves only in one plane.$2$. Triplobl

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Aschelminthes

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(A) $1$. Bilateral symmetry refers to the body plan where the body can be divided into identical left and right halves only in one plane.$2$. Triploblastic refers to animals whose body wall is made up of three germ layers: ectoderm,mesoderm,and endoderm.$3$. $Aschelminthes$ (roundworms) are the first group in the animal kingdom to exhibit bilateral symmetry and are triploblastic.$4$. $Protozoa$ are unicellular,$Porifera$ are asymmetrical and diploblastic (or cellular level),and $Coelenterata$ are radially symmetrical and diploblastic.$5$. Therefore,the correct option is $A$.

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

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