Which one of the following statements is incorrect?
Countercurrent flow of blood and water in gills of fishes enhances oxygenation.
Most of the aquatic arthropods use special vascularized structures called gills for respiration
Larvae of amphibians perform branchial respiration
Arthropods use their cuticle for exchange of oxygen and carbon dioxide with the atmosphere
Cutaneous respiration occurs in annelids; not arthropods. Cuticle of arthropods is impermeable to oxygen.