Components
Energy Flow
Biogeochemical Cycles
Cycle Diagrams 1
Cycle Diagrams 2
100
"living" components of an ecosystem
biotic
100
What is the ultimate source of energy for the ecosystems here on earth?
the SUN
100
The pathways by which chemicals circulate through ecosystems.
biogeochemical cycles
100
What is labeled B below?
photosynthesis
100
What is labeled G below?
ice
200
Name 2 abiotic components of an ecosystem:
sunlight, water, soil, temperature, wind/weather
200
Diagram that shows a single path of energy flow through and ecosystem.
food chain
200
The part of the biogeochemical cycle that includes the food chains the chemicals move through.
biotic community
200
What is labeled H below?
fossil fuels
200
What is labeled C below?
aquifer
300
Organisms that are adapted to eating either plants or other consumers (meat).
omnivore
300
The amount of energy lost when it passes from one trophic level to the next.
90%
300
The source from which the living organisms (producers) take the chemicals.
exchange pool
300
What is labeled G below?
Nitrogen fixing bacteria in root nodules of legumes
300
What is labeled F below?
Phosphate in soil
400
Name the three levels of consumers found in an ecosystem:
primary, secondary, and tertiary
400
Term for all the organisms that feed at a particular link in a food chain:
trophic level
400
The source of the chemical that is directly unavailable to the producers.
reservoir
400
What is labeled E below?
Nitrifying bacteria
400
What is labeled B below?
phosphate mining
500
Term for bacteria that can use chemicals to make sugars instead of sunlight
chemoautotrophs
500
Where are inverted energy pyramids located?
aquatic ecosystems
500
Term for the partially decomposed matter in the soil or water.
detritus
500
What is labeled D below?
denitrifying bacteria
500
What is labeled I below?
biota