Gases are exchanged in the many filaments, and oxygen absorption is very facilitated by hemocyanin. Red king crabs exhibit unidirectional air flow. This can be called the flow of h2o inside a U-shaped class; water passes posteriorly through the incurrent opening, an opening during the carapace close to the base https://kingcrab02356.blog-gold.com/36608165/details-fiction-and-king-crab