Which group of arthropods has more than two pairs of legs?

The correct answer is found in understanding the classification of arthropods and their respective leg structures. Centipedes belong to the class Chilopoda and are characterized by having a body divided into segments, each typically bearing one pair of legs per segment. However, they do not have more than two pairs of legs; they actually have many pairs based on their length but are often thought of as having one pair of legs per body segment.

In contrast, arachnids, which include spiders and scorpions, are characterized by having eight legs, making them a clear group with more than two pairs of legs. Similarly, crustaceans, which include crabs and lobsters, also have multiple pairs of legs, often leading to confusion.

Insects, on the other hand, typically have three pairs of legs, amounting to six legs in total. Therefore, the classification of arthropods helps clarify that the groups with more than two pairs of legs include arachnids and crustaceans, while centipedes and insects do not fit this criteria as one would think.