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Ecology Fenmore
Flashcards
| Question | Answer |
|---|---|
| What is Ecology? | The scientific study of interactions among organisms and between organisms and their enviorment, or surrounding |
| What is a Biosphere? | Contains all combined portions of the planet in which all life exists, including land, water, and air/atmoshere |
| Species | A group of organisms so similar to one another that they can breed |
| Population | Groups of induviduals that belong in the same species in the same area. |
| Community | Different populations that live together in a defined area |
| Ecosystem | a collection of all organisms that live in a particulsr place |
| Autotroph | Use sunlight or chemicals to produce fuel for energy |
| Heterotroph | Organisms that rely on other organisms as their fuel supply |
| Food Web | When feeding relationships amoung the various organisms in an ecosystem form a network of complex interations |
| Trophic Level | Each step in the food chain or web |
| Biomass | The total amount of living tissue within a given tropic level |
| Biogeochemical Cycle | Connect Biological, Geological, and chemical aspects of the bioshere |
| Limiting Nutrient | single nutrient that is either scarce or cycles very slowly |
| Weather | condition of earths atmosphere at a particular time and place |
| Climate | average year after year weather conditions |
| Green House Effect | Natural situation in which heat is retained in the earths atmoshpere by carbon dioxide, methane, water vapor, and other gases |
| Biotic Factor | Biologiacl influence on organisms within an ecosystem |
| Abiotic Factor | Physical or non living factor that shapes an ecosystem |
| Niche | Full range of physical and biological conditions in which an organism lives and the way in which an organism uses those conditions |
| Logistic Growth | Growth pattern in which a population's growth wieght slows or stops following a period of expotential growth |
| Carrying Capacity | Largest number of induviduals of a population that a given enviorment can support |
| Demography | Scientific study of human populations |
| Demographic Transition | Change in a population from high birth and death rates to low birth and death rates |
| Green revolution | The development of highly productive crop strains and the use of modern technology to incease yield crops |
| Renewable Resource | Resource that can regenerate quickly and is replaceable |
| Pollutant | Harmful material that can enter the biosphere through land water or air |
| Biodeversity | The sum total of the variety of organisms in the biosphere |
| Biological Magnification | increasing the concentration of harmful substances in organisms in higher tropic levels |
Created by:
hfenmore
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