Question

the class hirudinea is part of the phylum annelida and is commonly known as leeches. they can be found in freshwater, saltwater, and on land. which class of annelid worms can be found in various marine environments? hirudinea oligochaeta polychaeta

Explanation:

1. Recall the habitats of annelid classes:

• Hirudinea (leeches) are in freshwater, saltwater, and land, but not primarily marine - focused.
• Oligochaeta (e.g., earthworms) are mainly terrestrial or freshwater.
• Polychaeta is the class of annelids (like marine worms) that is predominantly found in marine environments, with many species adapted to various marine habitats.

Answer:

C. Polychaeta