Photosynthesis
Biogeochemical Cycles
Energy Flow
Succession
Vocab
100
C6H12O6
What is a sugar molecule?
100
Part of an ecosystem that contains large amounts of carbon.
What is a carbon sink?
100
The meaning of the arrows on a food chain or food web.
What is the direction of energy flow?
100
Occurs on a surface where no ecosystem existed before.
What is primary succession?
100
Succession that occurs from abandoned farmland.
What is old-field succession?
200
Organism that makes its own food.
What is a producer?
200
Makes up 78% of the gases in the atmosphere.
What is nitrogen?
200
Shows many feeding relationships that are possible in an ecosystem.
What is a food web?
200
Can be caused by natural disasters taking out an entire ecosystem.
What is secondary succession.
200
A gradual process of change and replacement in a community.
What is ecological succession?
300
The process of breaking down food to get energy.
What is cellular respiration?
300
Causes human to release about 6 billion metric tons of carbon per year.
What is burning of fossil fuel.
300
Consumers that eat herbivores but can also be prey themselves.
What are secondary consumers?
300
First organism to colonize a newly available area and begin the process of ecological succession.
What is a pioneer species?
300
A linear sequence in which energy is transferred from one organism to the next.
What is a food chain?
400
The ultimate source of energy for all organisms.
What is the sun?
400
Type of plant that contains nitrogen-fixing bacteria.
What are legumes?
400
The amount of energy remaining at each level on an energy pyramid to pass to next level.
What is 10%?
400
The final, stable community of an ecosystem.
What is the climax community?
400
Organism that gets it energy from producers.
What is a herbivore?
500
6CO2 + 6H2O + solar energy → C6H12O6 + 6O2
What is the chemical equation for photosynthesis?
500
Biogeochemical cycle that does not usually have a gaseous phase.
What is the phosphorous cycle?
500
Represented by each layer on an energy pyramid.
What are trophic levels.
500
Time frame for when shrubs come in during old field succession.
What is 3-10 years?
500
Breaks down dead organisms.
What is a decomposer?
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