Flashcards in Ch. 5 Deck (20):
Number of different species living in a specific area.
Technique of adding essential materials to a degraded ecosystem.
Increasing concentration of toxic substances, such as ddt, in organisms as trophic levels increase in food chains or food webs.
Technique using living organisms to detoxify a polluted area.
Variety of ecosystems in the biosphere.
Any different environmental condition occurring along an ecosystem's boundaries.
Found only in one specific geographic area.
water pollution from nitrogen rich and phosphorus rich substances flowing into waterways, causing algal overgrowth
the disappearance of a species when the last of its members dies
variety of inheritable characteristics or genes in an interbreeding population
habitat loss from desperation of an ecosystem into small pieces of land
nonnative species deliberately or accidentally introduced into a new habitat
a large scale dying out of a large percentage of all living organisms in an area within a short time
any material or organism in the biosphere, including water, soil, fuel, and plants and animals
any natural resource available in limited amounts or replaced extremely slowly by natural processes
overuse of species with economic value a factor in species extinction
any resource replaced by natural processes more quickly than it is consumed
in a biological community, the number and abundance of different species
use of resources at a rate that they can be replaced or recycled