Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Ecology Megan Rieden
| Question | Answer |
|---|---|
| what is ecology | scientific study of interactions among organisms and between organisms and their environment |
| biospehere | part of the earth in which life exists including land, water, and air or atmosphere |
| species | a group of similar oragnisms that can breed prdouce fertile offspring |
| population | a group of individuals of the same area |
| community | assemblage of diffrent populations that live together in a definded area |
| ecosystem | collection of all the oranisms that libe in a particular place , together with their nonliving envierment |
| autotroph | organism that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds |
| heterotroph | organism that obtain energy from the foods it comsumes, also called the consumer` |
| food web | a network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem |
| trophic level | step in food chain or web |
| biomass | total amount of living tissue within a given trophic level |
| biogeochemical cycle | process in which elements, chemical compunds, and other forms of matter are passed form one another |
| limiting nutrient | sunlge nutrient that either is scarce or cycles very slowly, limiting the growth of organisms in an ecosystem |
| weather | condition of Earth's atompshere at a particular time and place |
| climate | average year-after-year conditions of a temperature and precipitaion in a particular region |
| green house effect | natural situation in which heat is retained in Earth's atomosphere by carbon dioxide, methane, water vapor, and other gasses |
| biotic factor | biological influence on organisms within an ecosystem |
| abiotic factor | physical or nonliving factor that shapes an ecosystem |
| niche | full range of physical and biological conditions in which an organism lives and the way in which the organism uses the conditions |
| logistic growth | growth pattern in which a population's growth rate slows or stops following a period of exponetial growth |
| carrying capacity | largeest number of individuals of a population |
| demography | scientific study of human populations |
| demography transistion | change in the populations from high birth and death rates to low death rates |
| green revoltion | the development of a highly productive crop strains and the use of modern agricultural techquies to increase yields of food crops |
| renewable resource | a source that can regenerate quickly and that is replacable |
| pollutant | harmful material that can eneter the biosphere through the land, air , or water |
| biodiversity | the sum of the total of the variety of oraganisms in the biosphere |
| biological magnification | increasing concentration of a harmful substance in organisms at a higher trophic levels in the food chain |
Created by:
meganrieden
Popular Biology sets