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4 votes
1. What is the respiratory structure of a millipede?

A. book lungs

B. tracheal tube

C. gill slits


2. what is the respiratory structure of a spider?

A. gills

B. book lungs

C. tracheal tube

D. gill slits

User Tobi
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9.1k points

1 Answer

4 votes
The answer is Tracheal tube in both the cases.
User Bleakley
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