How do marine polychaetes use chitin-hardened body parts?

A) as chitin-reinforced bristles for movement only
B) as chitin-hardened tentacles to move sand only
C) as chitin-hardened jaws to capture prey only
D) as chitin-hardened jaws to capture prey and chitin-hardened tentacles to move sand
E) as chitin-reinforced bristles for movement and chitin-hardened jaws to capture prey

Chitin-Hardened Jaws

Structural feature referring to jaws strengthened by chitin, a fibrous substance forming the exoskeleton of arthropods and other organisms.

Marine Polychaetes

A diverse class of annelid worms, commonly known as bristle worms, that live in various marine environments.

Chitin-Reinforced Bristles

Stiff bristles made stronger with the natural polymer chitin, commonly found in the exoskeletons of arthropods.