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Biology22
| Question | Answer |
|---|---|
| Biome | large geographic area (ex Desert) |
| Biosphere | 10000m above and below sea level where organisms can live |
| Population | organisms of the same species in one area |
| Species | a class of individuals having some common characteristics or qualities; distinct sort or kind |
| Community | groups of populations living in an area (biotic) |
| Abiotic | not alive |
| biotic | alive |
| trophic level | each step in the transfer of energy and matter within a food web |
| autotroph | organism that creates its on energy via the sun |
| heterotroph | organism that eats others for energy |
| herbivore | plant eater |
| carnivore | meat eater |
| omnivore | all eater |
| detritivore | eater of dead things, scavenger |
| scavenger | eat dead things that others dont want |
| decomposer | breaks down organic matter into inorganic matter and gets energy from this |
| biogeochemical cycle | The flow of chemical elements and compounds between living organisms and the physical environment. |
| transpiration | water vapor lost from leaves into air |
| where is major amount of carbon? | atmosphere |
| respiration | plants return carbon to atmosphere |
| fossil fuels | must burn to use, combustion |
| nitrogen fixation | the conversion of nitrogen gas from the air to ammonia |
| nitrogen fixing bacteria | symbiotic bacteria |
| ammonia | bacteria convert nitrogen in the soil to this, and soil moves into plants to animals etc |
| denitrification | nitrates in soil are broken down and nitrogen is released back into atmosphere |
| phosphate | dissolved phosphorous + oxygen ... later absorbed by plants |
| geologic uplifting | earth moves and new surface is exposed |
| niche | the range of physical and biological conditions in which an organism lives and the way it uses those conditions |
| habitat | the area where an organism lives including the biotic and abiotic factors that affect it |
| competition | organisms attempt to use an ecological resource at the same time and place |
| predation | an interaction where an organism feeds on another |
| symbiosis | relationship when organisms live closely together for a long time |
| parasitism | occurs when one organism lives on or inside another organism and causes it harm |
| mutualism | both organisms benefit from each other |
| commensalism | when one organism benefits and one doesnt care |
| primary succession | new environment formed up, starts with no soil |
| secondary succession | new environment formed up, starts with soil |
| pioneer species | first organism that shows up in new environment |
| climax species | last type of plant to show up in new environment |
| biodiversity | the variety of species within an area |
| sustainability | the quality of not being harmful to the environment or depleting natural resources, and thereby supporting long-term ecological balance |
| deforestation | removement of forest |
| dependent limiting factor | limits population; depends on density of pop. |
| independent limiting factor | limits population; independent of density |
| J curve | exponential |
| S curve | logistic |
| carrying capacity | the amount of organisms an environment can hold |
| reproduction rate | rate at which organisms reproduce |
| population density | amount of organisms in a population |
| Producers -> consumers -> | decomposers |
| limiting factor | any factor in the environment that prevents an increase in pop. size |
| condensation | water vapor changes into liquid water |
Created by:
unknownstudent
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