Crayfish use gills to breath.
yes
Crayfish exchange gases through gills located underneath their carapace. Water is drawn in through the crayfish's openings and passes over the gills, where oxygen is absorbed and carbon dioxide is released.
Gills allow animals to breath underwater.
Exoskeleton: Crayfish have a hard shell, and no bones. That makes crayfish invertebrates (no spine). Gills: Crayfish respire underwater through gills, where humans use lungs. The circulatory system is the second one, the reason for this being that crayfish have no blood vessels (and humans obviously do).
A crayfish has gills, which are specialized organs used for breathing underwater. They extract oxygen from the water as it flows over them. Crayfish do not have feathers or scales; instead, their bodies are covered with a hard exoskeleton.
It is important that the gills of a crayfish give them a large surface area because it helps the crayfish to breathe. The bigger the surface area, the more oxygen in the crayfishes system.Ê
gills
Something that looks quite similar to a fish's gills.
BOTH, as long as their gills are moist
By using their swimerettes. They create a current of water and then it goes through their gills.
spiders: book lung grasshopper : trachea crayfish: gills