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25 terms

Ag 3

STUDY
PLAY
recombination DNA used to make GMOs is
DNA that is patched together using DNA from multiple organisms
many concerns have been raised about the safety of GMOs. what concern hasnt been risen?
genetically modified crops increase the use of fossil fuels and therefore increase the production of carbon dioxide
what type of crop accounts for the most of the worlds genetically modified crops
soybeans
recombination DNA
is the mergining of DNA from unrelated organisms to create new genetic varieties
what is true about GM crops
the united states leads the world in land area dedicated to GM crops
in japan, the presence of ducks and the aquatic fern Azolla in rice cultivation has shown that
restoring portions of the biodiversity of natural ecosystems increases crop yields and profits
organic farming
has increases in the united states canada and europe in recent years
in order for livestock to be considered organic
animals must be fed 100% organic agricultural feed
researchers have demonstrated that organic farming
decreased organic soil losses while giving yields comparable to conventional farming
aquaculture
can bring economic benefits and food security to many developing regions
why is variety in crop plants important for food security
varieties contain genes that through conventional breeding might confer resistance to disease
Bt crops
have been given a bacterial gene that gives chemical protection against pests
what requires the least land to produce 1 kg of protein
chicken
the european union nations
do not support the growth or sale of GM crops
the cartagena protocol on biosafety
outlines regulations on international trade of GM foods
it is more energetically efficient for us to eat more
plant based foods
recent investigations about the impact of GM crops on biodiversity indicate that
some GM sites had increased biodiversity, while in others it decreased
what was a positive environmental aspect of the flavor savor tomato
grown using less chemicals because it is less likely to rot
the flavor savor tomato is no longer marketed because
people were nervous about eating genetically modified tomatoes
if GM crops can decrease pesticide use, why are environmentalists still concerned
inserted genes can spread to nontarget species
livestock waste from concentrated farms can lead to a type of water pollution called
eutrophication
cows require a high quantity of feed because they
take time to row and have low energy conversion efficiency
you can make changes in your diet to diminish your ecological footprint by
shifting your protein intake from beef and pork to eggs and dairy
we will be able to support more people with the same amount of food supply if most people eat what type of diet
vegetarian
what is the basic concept of sustainable agriculture
it is agriculture that does not deplete soils faster than they form