Body of flatworm is covered by cuticle. Will it be considered as exoskeleton?

Answer 1

Parasitic flatworms (Platyhelminth) possess a cuticle on ectoderm but it is flexible, and free of mineral, thus cannot be considered as exoskeleton.

Exoskeleton and endoskeleton are absent in members of phylum Platyhelminthes. These are the first group of animals where three primary germ layers develop, i.e. ectoderm, mesoderm and endoderm. All members are acoelomate, many are parasitic.

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Answer 2

Madeline Andrews

No, the cuticle of a flatworm is not considered an exoskeleton. Exoskeletons are rigid external structures made of chitin, typically found in arthropods. The cuticle of flatworms is a protective layer, but it lacks the rigid nature of an exoskeleton.

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