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Ecology Faridnia
Study of Life
| Question | Answer |
|---|---|
| 3-1 Ecology | scientific study of interactions among organisms between organisms and their enviroment |
| 3-1 Biosphere | part of earth in which life exists including land, water,and air or atmoshpere |
| 3-1 Species | group of similar organisms that can breed and produce fertile offspring |
| 3-1 Population | group of individuals of the same species that live in the same area |
| 3-1 Community | Assemblage of different populations that live together in a defined area |
| 3-1 Ecosystem | In a particular place, together with their nonliving enviroment |
| 3-2 Autoroph | organism that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds |
| 3-2 heterotroph | organism that obtains energy from the foods it consumes |
| 3-2 Food Web | network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem |
| 3-2 trophic level | step in a food chain or food web |
| 3-2 Biomass | total amount of living tissue within a given trophic level |
| 3-3 biogeochemical cycle | process in which elements, chemical compounds, and other forms of matter are passed from one organism to another and form one part of the biosphere to another |
| 3-3 limiting nutrient | single nutrient that either is scarce or cycles very slowly, limiting the growth of organisms in an ecosystem |
| 4-1 weather | condition of earth's atmosphere at a particular time and place |
| 4-1 Climate | average,year-after-year conditions of temperature and precipitation in a particular region |
| 4-1 green house effect | natural situation in which heat is retained in earth's atmosphere by carbo dioxide, methane, water vapor, and other gases |
| 4-2 biotic factor | biological influence on organisms within an ecosystem |
| 4-2 Abiotic factor | physical, or nonliving factor that shapes an ecosystem |
| 4-2 niche | full range of physical and biological conditions in which organism lives and the way in which the orgaism use those conditions |
| 5-1 logistic growth | growth pattern in which a population's growth rate slows or stops following a period of exponentail growth |
| 5-1 carrying capacity | largest number of individuals of a popluation that a given enviroment can support |
| 5-3 demography | scientific study of human populations |
| 5-3 demographic transition | change in a population from high birth and death rates to low birth and death rates |
| 6-1 green revolution | the development of highly productive crops strains and the use of modern agricultural techniques to increase yields of food crops |
| 6-2 Renewable resource | resource that can regenerate quickly and that is replaceable |
| 6-2 Pollutant | harmful material that can enter the biosphere through the land, air, or water |
| 6-3 Biodiversity | biological diversity; the sum total of the variety of organisms in the biosphere |
| 6-3 Biological magnification | increasing concentration of a harmful substance in organisms at higher trophic levels in a food chain or food web |
Created by:
Nina14
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