Ecology college biology final
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20 Terms
Producer
Organism that makes its own food through photosynthesis
Primary consumer
Organism that eats producers
Secondary consumer
Organism that eats primary consumers
Tertiary consumer
Top predator
Energy flow
Energy moves upward and decreases at each level
10 percent rule
Only about 10 percent of energy transfers to the next trophic level
Competition
Organisms competing for limited resources
Predation
One organism hunts and eats another
Mutualism
Both organisms benefit
Commensalism
One benefits, other unaffected
Parasitism
One benefits, one harmed
Batesian mimicry
Harmless species mimics a harmful one
Mullerian mimicry
Two harmful species resemble each other
Food chain
Single pathway of energy transfer
Food web
Multiple interconnected food chains
Carrying capacity
Maximum population an environment can support
Limiting factor
Resource that restricts population growth
Biotic factor
Living part of an ecosystem
Abiotic factor
Nonliving part of an ecosystem
Note 
Flashcards (27)