User:JohnKGII/sandbox

Fish
Edit: "Most fish exchange gases using gills on either side of the pharynx (throat), forming the Splanchnocranium; the Splanchnocranium being the portion of the skeleton where the cartilage of the cranium converges into the cartilage of the pharynx and its associated parts."

Done: Delete: (") in "These filaments have many functions and "are involved in ion and water transfer as well as oxygen, carbon dioxide, acid and ammonia exchange."

Done: Edit "Fish exchange gases by pulling oxygen-rich water through their mouths and pumping it over their gills. In species like the Spiny dogfish and other sharks and rays, a spiracle exists near the top of the head that pumps water into the gills when the animal is not in motion ."

Done: Replace "The gills push the oxygen-poor water out through openings in the sides of the pharynx" with: "The muscles on the sides of the pharynx push the oxygen-depleted water out the gill openings. In bony fish, the pumping of oxygen-poor water is aided by a bone that surrounds the gills called the Operculum (fish) ."

Done: Replace "Each filament contains a capillary network that provides a large surface area for exchanging oxygen and carbon dioxide" with: "Each filament contains a capillary network that provides a large surface area for the exchange of gases and ions."

Done: Add source to "These filaments have many functions and "are involved in ion and water transfer as well as oxygen, carbon dioxide, acid and ammonia exchange ."