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Ecosystem

TermDefinition
Organism A living thing.
Habitat An environment that provides the things a specific organism needs to live, grow, and reproduce.
Biotic factor The parts of a habitat that are or were once alive and that interacts with an organism.
Abiotic factor The non living parts of an organisms habitat.
Species Is a group of organisms that can mate with each other and produce offspring that can also mate and reproduce.
Population All the members of one species living in a particular area.
Community All the different populations that live together in an area make up a community.
Ecosystem Organisms that live in a particular area, along with the nonliving environment, make up an ecosystem.
Ecology The study of how organisms interact with each other and with their environment.
Density The number of individuals in an area of a specific size.
Limiting factor An environmental that causes a population to stop growing or to decrease in size, such as a fatal disease infecting organisms.
Producer An organism that can make its own food.
Consumer A consumer obtains energy by feeding on other organisms.
Decomposers Decomposers break down biotic wastes and dead organisms, returning the raw materials to the ecosystem.
Food chain A series of events in which one organism eats another and obtains energy and nutrients
Food web A food web consists of many of many overlapping food chains in an ecosystem.
Energy pyramid Shows the amount of energy that moves one feeding level to another in a food web.
Photosynthesis Photosynthesis is the set of chemical reactions. Plants used to turn light water and nutrients into oxygen and energy in the form of sugars.
Chlorophyll Absorbs light, much like sells in solar panels do.
Autotroph An organism that makes its own food is known as an autotroph
Heterotroph An organism that has to get its food from a source and is unable to make its own food is called a heterotroph
Law of conservation of mass States that matter is neither created nor destroyed during any chemical or physical change.
Law of conservation of energy Evaporation is the process by which molecules at the surface of liquid water absorb enough energy to change to a gas.
Condensation The process of a gas changing to a liquid.
Precipitation The heavy drops fall in the form of precipitation.
Created by: user-1979406
 

 



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