Studied by 132 peoplemany long texts on termfffaaafdǐ
second card now!
scurvy things here.
disease due to lack of vitamin C.
kwashiorkor
disease due to lack of protein
rockets
disease due to lack of vitamin Dom
organic agriculture, takuya hadesi
yeee haaaa, uses no synthetic fertilizers, insecticides, fungicides or herbicides, and relies on biological control for pests now is good
another term here
another term here too
oil non oil things
cover with oil, as if by rubbing taukya
seeds are expensive and traits available are not what would help these regions
Why aren't GMOs prevalent in developing nations?
food security
the guarantee of an adequate and reliable food supply for all people at all times
arable
Land that is suitable for farming is described as being what?
using recombinant DNA technology to combine DNA from multiple organisms
How are GMOs created?
30%
approximately how much of the Earth's land surface is covered by forests?
What do the letters GMO stand for?
genetically modified organism
Canada, Brazil, Russia, Southern and Western US
most logging in the world currently occurs in what regions/countries?
water cycle
slowing runoff, reducing flooding, and purifying water through transpiration are all ways that forests contribute to the regulation of what?
single selection
single trees are cut, widely spaced from each other
clearcutting
all the trees in an area are cut at once; commonly used from 1950's - 1970's; most cost efficient method of timber harvesting
group selection
small patches of forests are cut
group selection and singe selection
timber harvesting that results in uneven-aged regrowth
shelterwood
small number of mature trees are left in place for seedlings
Theodore (Teddy) Roosevelt
Which US president set up the US Forest Service?
all fires extinguished immediately
What was the policy regarding forest fires in public lands for over 100 years?
malnutrition
a shortage of nutrients a body needs
1500 miles
How far does the average food product sold in a US supermarket travel between farm and shelf?
False
T or F: new GMO foods are dangerous for people to eat
False
T or F: Superpests have evolved that have resistance to GMO crops.
True
T or F: GMO genes have spread to wild plants through pollination.
False
T or F: GMOs with salinity and drought resistance are available for poor countries.
1850
most of the forests of the Eastern US were stripped by what year?
National Forest Management Act of 1976 and its modifications
What act/policy and its modifications include the following: decreased logging operations requires plans for renewable resource management limits the building of new roads in national forests emphasizes the use of science and conservation biology in creating new forest plans
advanced technology in machinery
Why is deforestation in developing nations happening at a far faster rate than ever before?
snags
dead, standing trees
controlled or prescribed burn
a fire that is set on purpose and under controlled conditions
consumer demand
Why are timber companies now producing wood and wood products that come from sustainable harvesting and forest management, even though it costs more?
conservation
What term is used today that got its current meaning from being used by Teddy Roosevelt, Gifford Pinchot, and John Muir?
reduce the fuel load of a forest
What is the primary purpose of a controlled or prescribed burn?
provide habitat maintain soil, air, and water quality play important roles in biogeochemical cycles
List 3 important jobs achieved by forests.
fossil
the remains of a plant or animal that existed in a past geological age and that has been excavated from the soil
rapid growth pest resistance frost tolerance herbicide resistance gaining certain characteristics of animal products (like medicine produced in milk)
List several different traits that are commonly desired/found in GMOs in developed countries.
some seeds don't germinate without burning first fire allows new growth to take place increases biodiversity by increasing plant species clears fuel load to prevent larger, more devastating fires
List several benefits of forest fires in maintaining forest health.
Home
Note
Flashcard