Which insect has long appendages on the end of the body, is found in homes and libraries where they damage books, labels, and starch products and has no metamorphosis?

The correct answer, silverfish, is a small, wingless insect known for its elongated body and distinct long appendages at the end, which are its cerci and antennae. Silverfish thrive in damp, dark environments, such as basements, attics, and libraries. These pests are particularly detrimental because they feed on materials containing starch, including paper, glue, and fabrics, making them common nuisances in places where books and documents are stored.

The defining characteristic of silverfish being incapable of metamorphosis is significant. They undergo a simple development process called ametaboly, meaning that they do not have distinct larval, pupal, and adult stages like some other insects. Instead, silverfish continue to grow and moult throughout their lives, maintaining a form that closely resembles the adult stage from early on.

Understanding the specific traits and behavior of silverfish is crucial for effective pest management, especially in preserving books and other starch-containing materials.