Question

1. what are the major classes of the phylum annelida? (choose all that apply)

hirudinea
oligochaeta
parapodia
polychaeta

Explanation:

The phylum Annelida (segmented worms) has major classes. Hirudinea (leeches), Oligochaeta (earthworms and relatives), and Polychaeta (marine annelids) are classes of Annelida. Parapodia are appendages (not a class) found in Polychaeta. So the correct classes are Hirudinea, Oligochaeta, and Polychaeta.

Answer:

A. Hirudinea, B. Oligochaeta, D. Polychaeta (assuming the options are labeled as A: Hirudinea, B: Oligochaeta, C: Parapodia, D: Polychaeta)