Question

leeches are in the phylum annelida and have medicinal uses for humans. leeches are in which class within the phylum annelida? class oligochaeta class hirudinea

Explanation:

Leeches belong to the Phylum Annelida. Among the classes in Annelida, leeches are classified under Class Hirudinea. Class Oligochaeta includes earthworms and similar organisms, not leeches.

Answer:

B. Class Hirudinea