| biological interaction(noun, expression, study, science, structure) |
| biotic community(noun, expression, form, study, science) |
| biotic material(noun, expression, study, science, structure) |
| carbon cycle(noun, expression, study, science, structure) |
| carrying capacity(noun, expression, study, science, structure) |
| chemical ecology(noun, expression, study, treatment, science) |
| community ecology(noun, expression, form, study, science) |
| competitive exclusion principle(noun, expression, study, science, structure) |
| conservation ecology(noun, expression, study, treatment, science) |
| decomposition(noun, expression, study, science, structure) |
| deep ecology(noun, expression, study, treatment, science) |
| desert ecology(noun, expression, form, study, science) |
| ecological anthropology(noun, expression, study, treatment, science) |
| ecological collapse(noun, expression, study, science, structure) |
| ecological crisis(noun, expression, study, science, structure) |
| ecological design(noun, expression, study, treatment, science) |
| ecological economics(noun, expression, study, treatment, science) |
| ecological engineering(noun, expression, study, treatment, science) |
| ecological extinction(noun, expression, study, science, structure) |
| ecological facilitation(noun, expression, study, science, structure) |