Symbiotic Relationships
more than one organism uses resource at a time
competition
all materials and organisms found in the biosphere
natural resources
any abiotic or biotic factor that restricts the numbers, reproduction, or distribution of organisms
limiting factor
all of the green plants and other organisms that produce their own food in an ecosystem
autotrophs
living factors in an organisms environment
biotic
Act of one organism pursuing and consuming another organism for food
predation
adding natural predators to a degraded ecosystem
biological augmentation
ability of any organism to survive when subjected to abiotic or biotic factors
tolerance
herbivores and carnivores and omnivores are all
heterotrophs
non-living factors in an organisms environment
abiotic
two or more organisms living closely together benefit from each other
mutualism
using resources at a rate at which they can be replaced or recycled while preserving the long-term environmental health of the biosphere
sustainable use
any factor in environment that does not depend on the number of members in a population per unit area
density-independent limiting factor
energy decrease by ______ % every increase in trophic level
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biological community and all of the abiotic factors that affect it
ecosystem
one organism benefits at expense of the other.
parasitism
different environmental conditions that occur along the boundaries of an ecosystem
edge effects
maximum number of individuals in a species that an environment can support for the long term
carrying capacity
chemical substance that an organism must obtain form its environment to sustain life and undergo life processes
nutrient
anything that takes up space and has a mass , provides nutrients needed for organisms to functions
matter
Type of relationship exists between sea anemone and clownfish
mutualism
variety of life in an area that is determined by the number of different species in a given area
biodiversity
how fast a given population grows, # born over mortality during given time period
population growth rate
increasing concentration of toxic substances in organisms as trophic levels increase in food chain or food web
biological magnification
role or position that an organism has in it environment
niche