Question

Aquatic arthropods belonging to this class breathe through gills.

Answer 1

Answer:

Aquatic arthropods respire with gills. Terrestrial forms rely on diffusion through tiny tubes called trachea. Trachea are cuticle-lined air ducts that branch throughout the body, and open in tiny holes called spiracles, located along the abdomen. ... Arthropods have an open circulatory system, and separate sexes.