Study of how living things interact w/ their environment and with the other things in that environment.
A particular environment and all the living things that are supported by it.
The living parts of an ecosystem.
The non-living parts of an ecosystem.
A series of events that happen over and over again.
The continuous movement of water through the Earth, its atmosphere, and the living things on Earth. Involves these processes: evaporation, condensation, precipitation.
The continuous movement of carbon through Earth, its atmosphere, and the living things on Earth. Involves processes such as photosynthesis, respiration, and combustion.
The continuous movement of nitrogen through Earth, its atmosphere, and the living things on Earth by "fixing" nitrogen gas and changing it to compounds that animals can use.
An organism that captures energy and stores it in food as chemical energy; usually plants.
Organism that cannot produce its own food and must get it from other sources; anything that eats plants or other animals.
Organisms that break down dead plants and animals; examples include fungi and bacteria.
The feeding relationship between a producer and a chain of consumers in an ecosystem.
Model of the feeding relationships between many different consumers and producers in an ecosystem; looks a little like a spider web.
A model that shows the amount of energy available at each feeding level in an ecosystem; the 1st level is producers and the top level is top consumers.