Which insect order includes springtails?

The correct answer is B, which identifies the order Collembola as the group that includes springtails. Springtails are small, wingless insects known for their unique ability to leap using a specialized structure called a furcula, which acts like a spring. This order is recognized for its importance in the ecosystem as it contributes to soil health through decomposition and nutrient cycling.

Collembola is distinct from the other orders presented in the choices. Thysanura, for example, includes insects like silverfish and firebrats, known for their elongated bodies and antennae, but they do not possess the jumping mechanism characteristic of springtails. Mallophaga, often referred to as chewing lice, primarily parasitize birds and mammals and are structurally different from springtails. Furthermore, Hymenoptera encompasses a wide variety of insects such as ants, bees, and wasps, which exhibit significantly different life cycles, forms, and habitats compared to springtails.

Therefore, the identification of springtails as members of Collembola is scientifically accurate, reflecting their unique features and ecological roles within their order.