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Biodiversity

Biodiversity and Ecosystems

TermDefinition
Abiotic non-living
Biotic living
Autotroph/Producer An organism that makes its own food
Heterotroph An organism that cannot make its own food
Consumer An organism that obtains energy by feeding on other organisms
Decomposer An organism that breaks down wastes and dead organisms
Food chain A series of steps in which organisms transfer energy by eating and being eaten
Food web network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem
Biodiversity the variety of life in the world or in a particular habitat or ecosystem
Species A group of similar organisms that can breed and produce fertile offspring
Ecosystems interactions of all organisms plus abiotic factors at a given time and place
Community All the different populations that live together in an area
Population A group of individuals that belong to the same species and live in the same area
Competition the struggle between organisms to survive in a habitat with limited resources
Predation An interaction in which one organism kills another for food
Symbiotic relationship close interaction between species in which one species lives in or on the other
Mutualism A relationship between two species in which both species benefit
Commensalism A relationship between two organisms in which one organism benefits and the other is unaffected
Parasitism A relationship between two organisms of different species where one benefits and the other is harmed
Energy Use Every organism takes in energy, converts it to useful forms, and expels energy
ultimate source of energy sun
energy lost as heat, movement, growth and repair, reproduction and wastes
Tertiary consumer An organism that eats secondary consumers
Trophic Levels producer, primary consumer, secondary consumer, tertiary consumer
Created by: justineforrest
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