human pop growth
Green Revolution
GMO's
Multimedia
HW
100
How populations change over time.
What are population dynamics?
100
Green plants or phytoplankton that can convert solar energy into chemical energy in sugars.
What are autotrophs?
100
The complete set of an organism's genes.
What is a genome?
100
Method by which agricultural yield was increased by 128% in parts of East Africa.
What is organic farming?
100
When the body receives less nutrients than it needs.
What is malnutrition?
200
Growth by a certain percentage in a certain amount of time
What is exponential growth?
200
When one species of plant is grown over a large area of land.
What is a monoculture?
200
Encouraging natural selection for traits you want in plants either by saving seeds or forcing fertilization between two plants.
What is selective breeding?
200
A system of oversight and management in the Gamo Highlands that prevents a "tragedy of the commons" scenario.
What are Wogas?
200
-Since 1985 grain production per person has dropped 9% per person -Soil depletion around the world -Nearly all arable land has been claimed
What are three factors that we may not be able to sustain agricultural production above population growth in the future?
300
When the population of a species rockets past the environment's carrying capacity for that species and then crashes.
What is a J curve?
300
powered by machines and fossil fuels uses inputs such as synthetic fertilizers and pesticides relies on monoculture uses lots of irrigation
What are characteristics of modern industrial farming?
300
DNA that has been patched together from DNA of multiple organisms?
What is recombinant DNA?
300
Nature's way of providing resilience?
What is biodiversity?
300
Our impact on the planet is a result of the combined forces of affluence, population and technology.
What is the IPAT formula?
400
The biomass (or energy) available to herbivores once the autotrophs have used the energy they need for their own metabolism.
What is net primary production?
400
animal and human muscle powered high biodiversity uses natural fertilizers like compost and manure
What are characteristics of traditional farming?
400
Process by which traits that enhance survival and reproduction are passed on more frequently to future generations that traits that do not.
What is natural selection?
400
water table dropping debt in order to buy pumps salinization of fields increasing need for fertilizers suicide of farmers pesticide resistant pests
What are some unintended consequences of the Green Revolution in India?
400
Two ways that we can meet the need to feed the world's growing population.
What are change in diet and a sustainable increase in agricultural production?
500
When the birth rate drops and is in dynamic equilibrium with the death rate
What is phase IV or the post-industrial phase of the demographic transition
500
Used selective plant breeding to develop disease resistant wheat in Mexico.
Who is Norman Borlaug?
500
Mutation and reproduction.
What are the two ways that genetic diversity is maintained?
500
A rare example of exponential population growth that is checked by the balance of nature.
What is the population dynamic of lemmings?
500
Unlike the cornucopian view, resource depletion is a problem because not all resources are replaceable.
What is the environmental scientist's view on population growth's effects on resources?
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