Alberta Structural Practice Exam

Jumping ability comes from how the legs are built. Flea beetles have hind legs that are stout and muscular, acting as a powerful spring to launch the insect into the air when disturbed. That makes the back pair of legs the correct description. The front legs aren’t specialized for swimming, they’re used for walking on plant surfaces and feeding. The middle legs aren’t winged—wings are separate structures located under the beetle’s wing cases, not part of leg function. And legs aren’t all equal in function; the hind pair is specialized for jumping, while the other legs handle different tasks.