A scientist who studies interactions between the abiotic and biotic parts of the environment.
All the interacting parts of a biological community and its environment symbiosis - an interactions between organisms of different species living in close proximity to each other in a relationship that lasts over time.
A symbiotic relationship between two different types of organisms that is beneficial to both.
A symbiotic relationship between two different types of organisms in which one of the partners is harmed and the other benefits.
A symbiotic relationship between two different types of organisms in which one partner benefits and the other neither benefits nor loses.
Resources of nature are being renewed at least as quickly as they are being used, and all wastes are able to be completely absorbed.
A calculation of the total area of land and water needed to supply all of the materials and energy a human uses, as well as absorb the waste produced.
A term applied to non‐living things in the environment; for example, air, water, and soil are abiotic.
A term applied to living things in the environment, such as humans, plants, birds, animals, and insects.
The role or characteristic activity that is undertaken one organism in an ecosystem; one organism may fill several different niches.
Plants that use energy from the sun to make nutrients they need to survive; includes some bacteria that transfer energy from particles.
Organisms that eat the food made by producers; can be either herbivores, carnivores, or omnivores.
An animal that eats other animals and plant material; examples are bear, raccoon, and people.
The network of feeding relationships among living organisms, as they pass on food energy.
The movement of energy, which originally comes from the sun, from one organism to another.
An organism that eats dead or decaying plant or animal matter; a carrion beetle is an example of a scavenger.
Organisms that break down the cells of dead or waster materials and absorb their nutrients; many bacteria and fungi are decomposers
The cycle in which carbon is used and reused through the ecosystem water cycle - the continuous movement of water through the biosphere; the water cycle consists of evaporation, transpiration, condensation, and precipitation.
The continuous movement of water through the biosphere; the water cycle consists of evaporation, transpiration, condensation, and precipitation.
A collective term for the different types of harmful materials that are released into the environment through human activities.
Rain that contains higher then normal levels of acid, caused by waste gases released into the atmosphere by industries and automobiles; damaging to the environment.
Movement of pollutants through levels of a food chain so that greater quantities are retained with movement up the food chain.
The gradual growth of organisms in an area that was formerly home to many different species. For example, the regeneration of a burned forest.
Species which are introduced into an environment where they are not naturally formed.
A method of checking the condition of an ecosystem by comparing investigation results done at different times.
Information gathered by scientists to be used as a starting point to compare changes in the environment.