14 terms

ECOLOGY

STUDY
PLAY
Species
Can interbreed and produce fertile offspring
Population
Same species that live at a certain area together
Community
Group of populations living and interacting in a certain area
Ecosystem
Community and its abiotic environment
Abiotic factors
pH
salinity
wind speed
soil type
Abiotic
Non-living
Autotrophs
Capable of self-producing complex organic molecules from CO2 and other simple compounds
Heterotrophs
Obtain organic compounds through ingesting other organisms
Ingestion
taking in of a substance
Consumers
Primary feed on autotrophs Secondary feed on primary
Tertiary feed on secondary but not only
Detritivores
Obtain organic nutrients from detritus
Internal digestion
Earthworms and dung beetles
Saprotrophs
obtain organic nutrients from dead organisms
external digestion
Fungi and bacteria
secrete digestive enzymes onto dead matter being fed on
Nutrient cycles
constant reuse of chemicals necessary for survival of organisms
Mesocosm
Model of a larger ecosystem
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