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4.10 Ecology

Review

TermDefinition
Biodiversity Diversity within species, between species and of ecosystems. High diversity is a sign of healthy, stable ecosystems.
Symbiosis any type of a close and long-term biological interaction between two different biological organisms, be it commensalistic, mutualistic, or parasitic
Producer Organisms that make their own food. If this type of organism was missing from the food web it would affect all energy flow.
Population The number of organisms of the same species that live in a particular geographic area at the same time, with the capability of interbreeding
Consumer Organisms that get their energy from eating other organisms. Less energy available as you move up each trophic level.
Energy Producers have the most to pass on. Represented by the arrow in food chains and webs.
Keystone Species A species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.
Invasive Species Species that is not native to an ecosystem and causes harm.
Ecosystem Community of organisms together with their physical environment
Limiting Factor Constrains a population's size and slows or stops it from growing (Ex: drought, winter, food, resources)
Community Organisms, of different species, occurring together in an area and interacting to varying degrees
Abiotic Factor Non-living components of an ecosystem (wind, water, soil, etc.)
Biome Community of plants and animals living together in a certain kind of climate
Created by: BioTeacherTOPS
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