Sentences with Gills

Fish use their gills to extract oxygen from water, allowing them to breathe and survive underwater.

The marine biologist carefully examined the fish's gills to assess its health and adaptability to the aquatic environment.

In biology class, the teacher emphasized the role of gills in maintaining the balance of oxygen and carbon dioxide in a fish's bloodstream.

The environmentalist advocated for cleaner waterways, emphasizing the detrimental impact of pollution on fish populations and their gills.