Nonliving components such as water, air, nutrients and solar energy
Living biological componets such as plants, animals, and microbes
Range of tolereance
The existance, abundance, and distribution of a species in an ecosystem are deteremined by whether the levels of one or more physical or chemical factors fall withing the range tolerated by that species
To much or too little of any abiotic factor can limit or prevent growt of a population , even if all the other factors are at or near the optimal range of tolerance.
Obtain eneregy and nutrientsby feeding on other organisms.
Producers that capture sunlight tonmake complex compunds
More complex nutrients without sunlight
Difference between food web and food chain
Food chain makes up the food web
Illustrates this energy loss for a simple food chain
Net Primary productivity (NPP)- the rate at which producers use photosynthesis to store energy minus the rate at which producers use some of the stored energy through aerobic respiration.
Gross primary productivity (GPP)- the rate at which an ecosystem’s producers convoy solar energy into chemical energy as biomass.
Jow do humans affect the cycles?
human processes burning of plants Mining Cutting and burning trees
The place where a population lives
Consits of all the populatioins of different species and plants.
Biologist have classified the terresttrial portion of the biosphere.