Animal Kingdom Ques 138

138. In contrast to Annelids the Platyhelminths show:

(a) Absence of body cavity

(b) Bilaterial symmetry

(c) Radial symmetry

(d) Presence of pseudocoel

Show Answer

Answer : a

Hints & Solutions

(a) Platyhelminthes includes flat warms. There is no body cavity. The animals are therefore acoelomates. Annelids also have bilateral symmetry. They are coelomate having a perivisceral cavity divided into compartments



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