| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | gill | marine biology community | A gill is an essential respiratory organ for most fish and some invertebrates, allowing them to extract oxygen from water. | 1 |
| 2 | gill | marine biology community | Gills are respiratory organs for extracting oxygen from water in fish and other aquatic animals. | 1 |
| 3 | gill | marine biology enthusiasts | Gills are crucial for the respiration of aquatic animals such as fish and crustaceans. | 1 |