The book lung in spiders and scorpions contains
A) numerous horizontal air spaces.
B) a spiracle that is connected to the outside air.
C) an arrangement that brings haemolymph into close contact with air.
D) a large surface area for gas exchange.
E) All of the answers are correct.

Question

Quizplus · Accepted Answer

The book lung in spiders and scorpions is characterized by numerous horizontal air spaces (lamellae) that increase the surface area for gas exchange, a spiracle that connects these air spaces to the outside air, and an arrangement that brings haemolymph (the invertebrate equivalent of blood) into close contact with air to facilitate gas exchange. Therefore, all of the provided options correctly describe features of the book lung.

The Book Lung in Spiders and Scorpions Contains