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
bioflash
flash cards
| Question | Answer |
|---|---|
| Ecology | scientific study of interactions among organisms and between organisms and their enviroment |
| Biosphere | part of earth in which life exists including land, water, and air or atmosphere |
| Species | group of similar organisms that can breed and prduce fertile offspring |
| Population | group of individulas of the same species that live in the same area |
| community | assembly of different populations that live together in a defined area |
| ecosystem | collection of all the organisms that live in a certain place, together with their nonliving enviroment |
| autotroph | organism that can capture energy through from sunlight or chemicals asnd use it to produce its own food from inorganic compounds;also called a producer |
| heterotroph | organism hthat obtains energy through the food it consumes;also called a consumer |
| food web | network of complex interactions formed by the feeding relationship amoing the various organisms in a ecosystem |
| trophic level | step in a food chain or food web |
| biomass | total amount of living tissue within a trophic level |
| biogeochemical cycle | process in which elements, chemical compounds, and other forms of matter are passed from one organism to another and from one part of the biosphere to another |
| limiting nutrient | single nutrient that is either scare or cycles very slowly, limiting the growthof organisms in an ecosystem |
| weather | condition of the eaths atmosphere at a particular time and place |
| climate | average, year-after-year conditions of temperature and precipitation in a particular region |
| green house effect | natural situation in which heat is rewtained in Earths atmosphere by carbon dioxide, methane, water vapor, and other gases |
| biotic factor | biological influence on organsims within an ecosystem |
| abiotic factor | physcial, 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 organisms used those conditions |
| 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 | The maximum number of individuals that a given environment can support without detrimental effects |
| demography | The study of the characteristics of human populations, such as size, growth, density, distribution, and vital statistics |
| demographic transition | change in death rates |
| green revolution | A significant increase in agricultural productivity resulting from the introduction of high-yield varieties of grains, the use of pesticides, and improved management techniques |
| renewable resource | Agricultural materials used as feedstocks for industrial processes |
| pollutant | Something that pollutes, especially a waste material that contaminates air, soil, or water. |
| biodiversity | The variability among living organisms on the earth, including the variability within and between species and within and between ecosystems. |
| biological magnification | The increasing concentration of toxins from pesticides, herbicides, and various types of waste in living organisms that accompanies cycling of nutrients through the trophic levels of food webs. |
Created by:
wesley123
Popular Biology sets