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ch 6 vocab. eliezer baez
ch 6 vocab
30
Biology
9th Grade
01/31/2007

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Term
agriculture
Definition
rasing animals, and crops
Term
monoculture
Definition
in which large fertilizers boosted plant growth and pesticides controlled cropdamaging insects
Term
green revolution
Definition
the development of highly productive crop strains and the use of the modern agriclutural techniques to increase yields of food crops
Term
renewable resources
Definition
resource that can regenerate quickly and that is replaceable
Term
renewable resources
Definition
resource that can regenerate quickly and that is replaceable
Term
nonrenewable resource
Definition
resource that can't be repunished by natural processes
Term
substainable development
Definition
using natural resources at a rate that does not deplete them
Term
soil erosion
Definition
wearing away of surface soil by water and wind
Term
desertification
Definition
in areas with dry climates, a process caused by a combination of poor farming practices, overgrazing, and drought that turns productive land into desert.
Term
deforestation
Definition
destruction of forests
Term
aquaculture
Definition
the raising of aquatic organisms for human consumption
Term
smog
Definition
a mixsture of chemicals that occurs as a gray-brown haze in the atmosphere
Term
pollutant
Definition
is a harmful material that can enter the biosphere through the land air and water
Term
acid rain
Definition
rain containing nitric and sulfuric acids
Term
biodiversity
Definition
is the sum total of the genetcally based variety of all organisms in the biosphere
Term
biodiversity
Definition
is the sum total of the genetcally based variety of all organisms in the biosphere
Term
ecosystem diversity
Definition
includes the variety of habitats communities and ecological proscesses in the living world
Term
ecosystem diversity
Definition
includes the variety of habitats communities and ecological proscesses in the living world
Term
species diversity
Definition
refers to the number of differ. species in the biosphere
Term
genetic diversity
Definition
refers to the sum total of all the different forms of genetic information carried by all organisms living on earth today
Term
genetic diversity
Definition
refers to the sum total of all the different forms of genetic information carried by all organisms living on earth today
Term
genetic diversity
Definition
refers to the sum total of all the different forms of genetic information carried by all organisms living on earth today
Term
genetic diversity
Definition
refers to the sum total of all the different forms of genetic information carried by all organisms living on earth today
Term
extiction
Definition
occurs when a species disappears fronm all or part of its range.
Term
endangered fragmentation
Definition
development often splits ecosystems into pieces
Term
biological magnification
Definition
concentrations of a harmful substance increase in organisms at higher trophic levels in a food chain or food web
Term
invasive species
Definition
species that are introduced into new habitats
Term
conservation
Definition
is used to describe the wise management of of natural resource
Term
ozone layer
Definition
atmospheric layer in which ozone gas is relativly concentrated
Term
global warming
Definition
where the suns rays gets trapped in the earth's atmosphere which warms up the earth
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