Food Chains
Lowest level of the food chain
This is a place where carbon gets stored in the ground
What are sinks?
Species A and B both benefit
What is Mutualism?
This percent of energy transfers from trophic level to the next
What is 10%?
Affects the whole food chain after removing one species
What are positive and negative feedback loops?
Movement of phosphorus between sources and sinks
What is phosphorus cycle?
Species A benefit; Species B is unaffected
What is Commensalism?
Rate of energy storage by photosynthesizers in a given area, subtracting energy lost through respiration
What is Net Primary Productivity?
Traditional food chain level for polar bear
What is Tertiary Level?
Nitrogen is converted by bacteria into a form of nitrogen usable by plants
Nitrogen Fixation
Species A benefits; Species B is harmed
What is Parasitism?
Total rate of photosynthesis
What is Gross Primary Productivity?