Question: Answer the following question given this paragraph: Like mollusks and annelids, aquatic arthropods may have gills to exchange gases with the water (discussed below). Terrestrial arthropods, on the other hand, have special respiratory structures to exchange gases with the air. These are described in Figure below . Q: What do aquatic arthropods use to exchange gases with the water? Choices: - nostrils - pores - lungs - gills A:
Answer:
gills