Question
Book lungs of Arachnida
Answer :
Word Count : 257
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Book lungs are specialized respiratory organs found in many arachnids such as spiders, scorpions, and some mites, representing an important adaptation to terrestrial life in this group. They are so named because their internal structure resembles the pages of a book. Each book lung consists of a sac-like cavity that opens to the exterior through a slit-like opening called a spiracle, usually located on the ventral side of the abdomen. Internally, the book lung contains numerous thin, leaf-like plates known as lamellae, which are arranged parallel to one another. These
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