13.1 Ecologists Study Relationships

Key Concept
Ecology is the study of the relationships among organisms and their living and nonliving environment

Organism
An individual living thing
Ex) Alligator

Population
A group of the same species that lives in one area

Community
A group of different species that live together in one area

Ecosystem
Includes all of the living and non-living things in a given area

Biome
Major regional or global community of organisms characterized by the climate conditions and plant communities that thrive there

Biome in Los Angeles
Chaparral Ecosystem

Lab Experiments
Give more control

Field Experiments
Give a more accurate picture