Book lungs are present in arthropods for the exchange of gases in class:
Correct answer: D. Arachnida
- A. Crustacea
- B. Myriapoda
- C. Insecta
- D. Arachnida
Explanation
Book lungs are a rudimentary type of lung typically found in arachnids, such as scorpions and spiders, and in horseshoe crabs.
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