Multiple Choice
Which sequence presents the insect tracheal system structures in the correct order, from most external to most internal?
A) tracheoles, tracheae, tracheal branches, spiracles
B) tracheoles, tracheal branches, tracheae, spiracles
C) spiracles, tracheae, tracheal branches, tracheoles
D) spiracles, tracheoles, tracheae, tracheal branches
Correct Answer:

Verified
Correct Answer:
Verified
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