| A | B |
|---|
| trade-off | losing one quality in return for gaining another |
| finite | resources in limited amounts |
| biological (pest) control | using natural enemies to control pest populations |
| chemical (pest) control | using pesticides to control pest populations |
| human population growth | reason for most of the world's ecological problems |
| carrying capacity | largest # of individuals that an environment can support |
| limiting factor | an abiotic factor that controls population growth |
| renewable resource | can regenerate quickly and is replaceable |
| nonrenewable resource | cannot be replenished through natural processes |
| global warming | caused by excess carbon dioxide trapping heat in the atmosphere |
| Biology | best class ever |
| deforestation | loss of forests |
| smog | mixture of chemicals that occurs as a gray-brown haze in the atmosphere |
| acid rain | contains nitric and sulfuric compounds with water vapor in the air |
| biodiversity | sum total of the genetically based variety of organisms in a biosphere |
| biological magnification | concentrations of harmful substances increase in organisms at higher trophic levels in a food chain |
| invasive species | plants and animals that have migrated to place where they are not native |
| conservation | wise management of natural resources |
