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Ecology Pt 2
Ecology Science 7 Part 2
Term | Definition |
---|---|
biome | area where climate typically determines the plant community which supports an animal community |
producers | organisms that create their own food; change energy from sunlight into chemical energy or food |
food chain | diagram that shows how energy and nutrients are transferred from one organism to another |
primary consumer | an organism that feeds on plants (herbivore) |
secondary consumer | carnivore that eats only primary consumer |
tertiary consumer | carnivore that feeds only on secondary consumer; at top most level of food chain |
food web | diagram that shows the feeding relationship between organisms in an ecosystem |
symbiosis | close, long term association between two or more species |
mutualism | symbiotic relationship where both organisms benefit |
parasitism | symbiotic relationship where one organism benefits and other is harmed |
commensalism | symbiotic relationship where one organism benefits and other is unharmed |
energy pyramid | shows an ecosystem loss of energy |
What plants need for photosynthesis | sunlight, water, carbon dioxide |
herbivore | organism that eats only plants |
carnivore | organism that eats only animals |
omnivore | organism that eats plants and animals |
decomposer | organism that breaks down dead organisms |
predator/prey | the relationship where one species eats the other prey gets eaten by the predator |
competition | interaction between species in which they are fighting over limited resources |
population growth | change in the number of species in a specific location during a time period |
limiting factors | a factor that slows or stops a population from growing |
ecosystem stability | the ability of an ecosystem to resist change when a challenge is presented to the ecosystem |
sustainability | an ecosystem's ability to maintain normal conditions |
Symbiotic Relationship | Interactions of an organism in an ecosystem. Can be harmful, helpful or neutral |