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Ecosystems
Energy
Nutrients and Food
Distribution
Experimentation
100
A community and its abiotic environment.
What is an ecosystem?
100
The initial energy source for almost all ecosystems.
What is light?
100
Recycled in ecosystems by fungi and saprotrophic bacteria.
What are nutrients?
100
Affect the distribution of a biome.
What are temperature and precipitation?
100
Total mass of organic matter of an organism, excludes water.
What is biomass
200
An organism that obtains organic matter from other organisms.
What is a heterotroph?
200
The way by which most energy leaves an ecosystem.
What is heat loss?
200
Affect the distribution of plant species.
What are mineral nutrients?
200
breeding sites
What is a factor that affects distribution of an animal species?
200
Involves placing down a grid and randomly sampling from multiple segments.
What is the quadrat method?
300
An organism that consumes secondary consumers.
What is a tertiary consumer?
300
kJ m-2 yr-1
What are the units for a pyramid of energy?
300
Interaction between producers and primary consumers.
What is herbivory?
300
succession that occurs after a fire
What is secondary succession?
300
Involves laying down a measuring tape, and counting organisms at regular intervals.
What is a transect?
400
Very cold in the summer, only topsoil layer thaws, little precipitation.
What is tundra?
400
Energy that is left after respiration.
What is net production?
400
When two species rely on the same limited resource.
What is competition?
400
Occurs after a volcanic eruption.
What is primary succession?
400
Involves cutting down vegetation in a plot, drying out samples and weighting.
What is measuring biomass?
500
Actual mode of existence of an organism.
What is the realized niche?
500
The amount of energy prior to respiration.
What is gross production
500
Pioneer species, first to help make soil.
What are lichen?
500
An organisms spatial habitat
What is the niche?
500
g m-2 y-1
What are the units for biomass?