Gases are exchanged in the many filaments, and oxygen absorption is very facilitated by hemocyanin. Crimson king crabs show unidirectional ventilation. This can be called the move of h2o in a very U-formed system; h2o passes posteriorly in the incurrent opening, an opening within the carapace near the foundation from https://tuckerw439qpg7.snack-blog.com/profile