Gerri says that spiders use their fangs for the same purpose that crustaceans use their claws. Alana disagrees and says that spiders use their fangs for the same purpose that centipedes use their claws.

Spiders use their fangs to inject venom into prey. Centipedes also use their modified front claws, called forcipules, to inject venom. Crustaceans commonly use their claws to grasp, crush, or handle food, so Alana is correct.

AI-written and checked against the verified answer.