What is the correct order of arthropod groups from those with most legs to those with fewest legs?

The correct order of arthropod groups from those with the most legs to those with the fewest is: Myriapoda (which includes centipedes and millipedes), Crustacea (such as crabs and shrimp), Arachnida (Spiders and scorpions), and Insecta (insects). Myriapods can have hundreds of legs, while crustaceans typically have multiple pairs of legs, arachnids have eight, and insects have six legs. This classification reflects the general trend of leg count decreasing from myriapods to insects.