Final answer:
The class Chilopoda, also known as centipedes, only consists of predatory arthropods that move quickly when disturbed, using their venomous fangs to capture prey.
Step-by-step explanation:
The arthropod class that only contains predators and which moves fast when disturbed is the Chilopoda, or more commonly known as centipedes. These creatures are characterized by having one pair of legs per body segment and a venomous bite, used to capture and subdue prey. Centipedes are nocturnal predators that commonly hunt for insects, and they can move quickly to escape threats or capture prey. Their first pair of legs is modified into fangs that inject venom into their victims, which can range from small arthropods to much larger animals in the case of the giant species.
The Chilopoda, commonly known as centipedes, form an arthropod class exclusively comprising predators. These creatures exhibit rapid movements, particularly when disturbed, distinguishing them as agile nocturnal hunters. Characterized by one pair of legs per body segment, centipedes utilize their venomous bite to capture and subdue prey. Their first pair of legs is modified into fangs, injecting venom into victims, a potent adaptation for hunting insects and other small arthropods. Notably, the agility of centipedes is crucial for both evading threats and swiftly capturing prey. While centipedes are generally modest in size, there exist giant species capable of inflicting venomous bites on larger animals. The predatory nature and quick movements of Chilopoda underscore their role as efficient nocturnal hunters within the diverse realm of arthropods.