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Biology Unit 7

Habitat all of the biotic & abiotic factors in the area where an organism lives (where an organism lives)
Niche all of the physical, chemical, and biological factors that a species needs to survive (how an organism lives)
Fundamental Niche where it could be
Realized Niche where it actually is
Intraspecies Competition within a species; compete for mates, food, water, shelter
Interspecies Competition between members of different species; for food, water, shelter, nutrients, light, etc.
Symbiosis ongoing interaction between members of 2 different species
Mutualism both species benefit
Commensalism one species benefits; the other is unaffected
Parasitism one species benefits; the other is harmed
Succession series of events that occurs as an ecosystem “matures”
Primary Succession when there was no soil there before
Pioneer Species first species to inhabit land during succession; often a moss or lichen
Climax Community fully mature group of organisms present at the “end” of succession
Secondary Succession when there had been soil – and life – there before, but it is starting over
Created by: SLYHS2018