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Ecology

Chpt. 18 Ecology Review

TermDefinition
Biotic Factors the living parts of an ecosystem
Abiotic Factors the non-living parts of an ecosystem
Competition relationship between organisms that struggle for resources
Predation (predator/prey) relationship where one organism hunts, kills, and eats another organism
Commensalism symbiotic relationship where one organism benefits and the other organism is unaffected
Parasitism symbiotic relationship where one organism benefits and the other organism is harmed
Mutualism symbiotic relationship where both organisms benefit
Sun original source of energy on Earth
Producer first biotic factor in a food chain
Decomposer breaks down dead organisms and returns nutrients to the soil
Apex Predator predator at the top of the food chain
Carnivore a consumer that eats meat
Herbivore a consumer that eats plants
Omnivore a consumer that eats both plants and meat
Scavenger a consumer that feeds on dead animals
Created by: JosieVerdi
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