What is Ecology
Ecology- The branch of biology that deals with relations of organisms to one another and their physical surroundings.
Organisms and Their Environment
1. Biotic and Abiotic Factors
Biotic Factors- Living components of an ecosystem.
Abiotic Factors- Nonliving components of an ecosystem.
2. Levels of Organization
1. Organism
2. Species 3. Community 4. Ecosystem 5. Biome 6. Biosphere |
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3. Symbiosis
Mutualism- A relationship between two species in which both species benefit.
Parasitism- A relationship between two organisms of different species where one benefits and the other is harmed.
Commensalism- A relationship between two species in which one organism benefits and the other is unaffected.