Terms in this set (31)
part of Earth in which life exists including land, water, and air or atmosphere
An animal that eats other animals
An organism that eats only plants
An organism that breaks down wastes and dead organisms
Place where an organism lives
An organism's particular role in an ecosystem, or how it makes its living.
An animal that eats both plants and animals
An organism that can make its own food.
An organism that obtains energy by feeding on other organisms
A series of events in which one organism eats another and obtains energy.
A community of organisms where there are several interrelated food chains
step in a food chain or food web
A diagram that shows the amount of energy that moves from one feeding level to another in a food web
the total mass of organisms in a given area or volume.
organism that obtains energy from the foods it consumes; also called a consumer
An organism that makes its own food
An organism that lives in or on another organism, deriving nourishment at the expense of its host, usually without killing it
the variety of life in the world or in a particular habitat or ecosystem.
different populations that live together in a defined area
A group of individuals that belong to the same species and live in the same area
A group of similar organisms that can breed and produce fertile offspring.
A community of organisms and their abiotic environment
Largest number of individuals of a population that a environment can support
A species, often introduced by humans, that takes hold outside its native range.
Species that normally live and thrive in a particular ecosystem
Examples of natural disruptions
Earthquake, flood, forest fire, hurricane.
Examples of human-made disruptions
Paving, urban development, mowing.
The removal of trees faster than forests can replace themselves.
Illegal killing or removal of wildlife from their habitats