Ecology Principles and Biodiversity
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24 Terms
Ecology
Study of organism interactions with environment.
Biodiversity
Variety of living organisms.
Genetic Diversity
Variation of genes within species.
Organismal Diversity
Number of species in an area.
Ecological Diversity
Variety of ecosystems.
Species
Group of organisms that can reproduce.
Population
Same species in one area.
Community
Different populations living together.
Ecosystem
Interaction of living and non-living components.
Biome
Large region with similar climate and organisms.
Biosphere
All ecosystems on Earth.
Biotic Factors
Living components of ecosystem.
Abiotic Factors
Non-living components.
Habitat
Physical place where organism lives.
Niche
Role of organism in ecosystem.
Competition
Organisms compete for resources.
Competitive Exclusion Principle
Two species cannot occupy same niche.
Predation
One organism eats another.
Predator
Organism that hunts.
Prey
Organism that is eaten.
Symbiosis
Close relationship between species.
Mutualism
Both species benefit.
Commensalism
One benefits, other unaffected.
Parasitism
One benefits, other harmed.
