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Question

Write relevant phylum/class for each of the following.
(A) A blood fluke that has two suckers and no body cavity.
(B) A terrestrial organism with three pairs of jointed appendages attached to each of its spires through the trachea.
(C) Soft-bodied animals enclosed in bivalves calcareous shell.

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Solution

(A) Cestoda is a class of parasitic worms in the flatworm phylum (Platyhelminthes).
(B) Insects or Insecta (from Latin insectum) are hexapod invertebrates and the largest group within the arthropod phylum.
(C) The mollusc (or mollusk) shell is typically a calcareous exoskeleton which encloses, supports and protects the soft parts of an animal in the phylum Mollusca, which includes snails, clams, tusk shells, and several other classes.


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