Ecologists might investigate the relationship between a population of organisms and some physical characteristic of their environment, such as concentration of a chemical; or they might investigate the interaction between two populations of different organisms through some symbiotic or competitive relationship.
Ahli ekologi menginvestigasi hubungan antara populasi organisme dan karakteristik fisik dari lingkungan mereka, seperti konsentrasi bahan kimia; atau menginvestigasi interaksi antara dua populasi organisme yang berbeda melalui hubungan simbiotik atau kompetisi.