| Label | Id | |
|---|---|---|
| Ectosymbionts | Ectosymbionts | |
| Endophytes | Endophytes | |
| Endosymbionts | Endosymbionts | |
| Engineered | Engineered | |
| Environmental | Environmental | |
| Epibionts | Epibionts | |
| Epilimnion | Epilimnion | |
| Epiphytes | Epiphytes | |
| Estuary | Estuary | |
| Extracellular | Extracellular | |
| Fecal | Fecal | |
| Feces | Feces | |
| Freshwater | Freshwater | |
| Fumaroles | Fumaroles | |
| Fungi | Fungi |