| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | protozoan | Tropical countries | Protozoans are often associated with waterborne diseases and are a concern for water sanitation and hygiene. | 1 |
| 2 | protozoan | tropical countries | Protozoans are commonly found in freshwater bodies and are important to the ecosystem as part of the food chain. | 1 |
| 3 | protozoan | tropical countries | Can be found in stagnant water sources and tropical climates | 1 |