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10 January, 13:28

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

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Answers (1)
  1. 10 January, 17:21
    0
    The answer is Tracheal tube in both the cases.
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