Chapter 2 Glossary Terms

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Chapter 2 Glossary Terms
2012-09-26 20:04:38
ms day science class grd glossary terms

The glossary terms for chapter 2 ON Science 9
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  1. Population
    All the individuals of a species that occupy a particular geographic area at a certain time
  2. Exponential Growth
    Accelerating growth that produces a J shaped curve when the poulation is graphed against time.
  3. Limiting Factors
    A factor that limits the growth, distribution, or amount of a population in an ecosystem e.g. The amount of water in the location
  4. Carrying Capacity
    • The size of a population that can be supported indefinitely bu the available recources and services of an ecosystem
  5. Ecological Niche
    The way in which an organism occupies a position in an ecosystem, including all the biotic and abiotic factors
  6. Predator
    An organism that kills and consumes other organisms
  7. Prey
    An organism that is eaten as food by a predator
  8. Mutualism
    A symbiotic relationship between two species in which both species benefit from the relationship
  9. Parasite
    An organism whose niche is dependent on a close association with a larger host organism
  10. Competition
    When two or more organisms compete for the same resource in the same location at the same time
  11. Sustainable Use
    Use that does not lead to long- term depletion of a resource or affect the diversity of the ecosystem from which the resource is obtained
  12. Doubling Time
    The period of time that is required for a population to double in size
  13. Ecological Footprint
    A measure of the impact of an individual or a population on the environment in trms of energy consumption, land use and waste production
  14. Unsustainable
    A pattern of activity that leads to a decline in the function of an ecosystem
  15. Sustainability
    Use of Earth's resources, including land and water, at levels that can continue forever
  16. Ecosystem Services
    The benefits experienced by organisms, including humans, that are provided by sustainable ecosystems
  17. Desertification
    The change of non-desert land into desert, which may result from climate change or from unsustainable farming or water use
  18. Ecotourism
    A form of tourism that is sensitive to the health of an ecosystem and involves recreational activities provided by sustainable ecosystems