Which order includes silverfish and firebrats?

The correct answer is Thysanura, which is the order that includes silverfish and firebrats. This order is characterized by wingless insects that have long, slender bodies and are often found in damp, dark environments. Silverfish are known for their silvery scales and are commonly found in households, thriving in stored books and papers, while firebrats prefer higher temperatures and are often found in places like attics or near heat sources.

The other orders listed do not include these particular insects. Collembola, commonly known as springtails, are small, soil-dwelling insects that are not closely related to silverfish or firebrats. Orthoptera includes insects like grasshoppers and crickets, which have distinctly different body structures and habits compared to silverfish and firebrats. Blattodea is the order that comprises cockroaches and termites, which are also unrelated to silverfish and firebrats. Understanding these classifications helps clarify the relationships between different insect orders and their respective characteristics.