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Ecosystems

QuestionAnswer
Organism Living thing
Habitat An environment that provides the things a specific organism needs to live, grow, and reproduce
Biotic factor Parts of a habitat that are or were once alive
Abiotic factor Nonliving parts of an organisms habitat
Population All of the members of one species living living in a particular area
Community All of the different populations that live together
Ecosystem A community of organisms that live in a particular area
Species A group of organisms that can reproduce and mate
Ecology The study of how organisms interact with each other
Population density The number of individuals in an area of a specific size
Limiting factor An environmental factor that causes a population to stop growing or to decrease in size
Carrying capacity The largest population that an area can support
Producer An organism that can make its own food
Consumer Obtains energy by feeding on other organisms
Decomposer Breaks down biotic waist and dead organisms
Food web Many overlapping food chains in an ecosystem
Food chain One organism eats another and gains energy and nutrients
Energy pyramid The amount of energy that moves from one feeding level to another in a food web
Photosynthesis A set of chemical reactions plants use to turn light, water, and nutrients into oxygen and energy in the form of sugars
Chlorophyll Absorbs light
Autotroph An organism that makes its own food
Heterotroph Gets its food from another source
Niche The role of an organism in its habitat
Competition Competition between organisms as they use the same limited resources
Predation One organism if the predator and one is the prey
Symbiosis Any relationship in which two organisms live closely
Commensalism One species benefits and the other is neither helped nor harmed
Mutualism Both species benefit
Parasitism One organism living in, with, or on another organism while harming it
Evaporation The proses of turning liquid into gas
Condensation The proses of turning water into dew or clouds
Precipitation Rain, snow, sleet, or hail is known as
Herbivore A consumer that only eats plants
Carnivore A consumer that only eats meat
Omnivore A consumer that eats both plants and animals
Created by: user-1979175
 

 



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