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Ecology Gomes
Bio note cards 9/27
| Question | Answer |
|---|---|
| Ecology | scientific study of interactions among organisms and between organisms and their environment |
| Biosphere | Part of earth in which life exists including land, water, and air or the atmosphere |
| Species | Group of smiliar organisms that can breed and produce fertile offspring |
| Population | group of individuals of the same species that live in the same area |
| Communtity | assemblage of different populations that live together in a defined area |
| Ecosystem | collection of all the organisms that live in the particular place, together with there nonliving environment |
| Autotroph | organisms that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds; also called a producer |
| Hetertroph | organism that can obtain enegery from the food it consumes; also called a consumer |
| food web | Network of complex interactions formed by the feeding relationships among the various organisms in an ecosystems |
| Trophic Level | step in a food chain or web |
| Biomass | total amount of living tissue within a given tropic level |
| 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 |
| Limiting Nutrient | single nutriant that it either scarce or cycles very slowly, limiting the growth of organisms in a ecosystem |
| weather | condidtion of earths atmosphere at a particular time and place |
| climate | average year after year conditions of temperature and precipitation in a particular region |
| Green House Effect | the heating of the atmosphere owing to the presence of carbon dioxide and other gases |
| Biotic Factor | an influence or effect created by an organism; an effect of an organism's actions within an environment |
| Abiotic Factor | pertaining to any non-biological factors that play a role in an organism's environment; non-living environmental factors |
| Niche | the position or function of an organism in a community of plants and animals. |
| Logistic Growth | Population growth in which the growth rate decreases with increasing number of individuals until it becomes zero when the population reaches a maximum. |
| Carrying Capacity | maximum, equilibrium number of organisms of a particular species that can be supported indefinitely in a given environment |
| Demography | the science of vital and social statistics, as of the births, deaths, diseases, marriages, etc., of populations. |
| Demographic Transition | transition from high birth and death rates to low birth and death rates as a country develops from a pre-industrial to an industrialized economic system. |
| Green Revoltution | The application of science to increasing agricultural productivity, including the breeding of high-yield varieties of grains, the effective use of pesticides, and improved fertilization, irrigation, mechanization, and soil conservation techniques. |
| Renewable Resource | any natural resource that can replenish itself naturally over time, as wood or solar energy |
| Pollutant | a substance that pollutes, esp a chemical or similar substance that is produced as a waste product of an industrial process |
| Biodiversity | diversity among and within plant and animal species in an environment. |
| Biological Magnification | the increasing concentration of toxic substances within each successive link in the food chain. |
Created by:
MadisonGomes
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