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What do most of the aquatic arthropods and molluscs use for gas exchange?
Option: 1
Lungs
Option: 2
Tracheal tubes
Option: 3
Gills
Option: 4
Cutaneous respiration
Answers (1)
Most of the aquatic arthropods and molluscs use special vascularised structures called gills (branchial respiration) for gas exchange.
Option 3 is the correct answer.
View full answer
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