Question Detail
Question
The _______ is a type of respiratory organ used for atmospheric gas exchange, found in arachnids, such as scorpions and spiders.
Correct Answer
Option C is the correct answer.
Detailed Explanation
Book lungs are respiratory organs found in some arachnids, consisting of a series of highly folded respiratory membranes (lamellae) arranged like pages in a book, allowing for gas exchange with the atmosphere. Trachea and spiracles are typically found in insects, and gills are for aquatic respiration.
Hint
The name of the organ often describes its layered, sheet-like appearance.