A) triploblastic
B) segmented
C) endo-parasites
D) free - living
Correct Answer: A
Solution :
All worms which belongs to phylum Platyhelminthes and As helminthes are triploblastic (i.e. body is consist of three primary germ layers?ectoderm, mesoderm and endoderm). Worms may be either en do-parasites or exo-parasites and generally devoid of body segmentation.
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