Assertion: salamander's gill | /r/HasProperty | external
Facets:
Source sentences:
text: Unlike amphibians with internalized gills which typically rely on the changing of pressures within the buccal and pharyngeal cavities to ensure diffusion of oxygen onto the gill curtain, neotenic salamanders such as Necturus use specified musculature, such as the levatores arcuum, to move external gills to keep the respiratory surfaces constantly in contact with new oxygenated water.
text: Their gills are internal and covered by an operculum.
text: These salamanders have external gills which are red in color.
text: In its larval stage, the spotted salamander lives in the water and has external gills.