Which of the following is true for how the term weed is used in agriculture?
answer
A weed is any organism that competes with our crops.
question
Biological control can have unintended consequences when _______.
answer
the biological control agent becomes invasive and affects nontarget species
question
Over time, pesticides become less effective. This is because _______.
answer
pests can evolve defenses against pesticides
question
The practice of integrating biocontrol, crop rotation, alternative tillage methods, and chemical use is called _______.
answer
integrated pest management
question
What is the name given to the idea that, when genetically modified organisms are produced, we should not take action until the environmental and human health effects are well documented?
answer
precautionary principle
question
How is biological control used for battling pests?
answer
It is a strategy that uses the predators of crop pests for pest control.
question
Why is variety in crop plants important for "food security"?
answer
Varieties contain genes that, through conventional breeding, might confer resistance to disease.
question
What is the United States' position on GM products?
answer
The U.S. position is that GM foods are an acceptable food crop.
question
What was the impact of the Green Revolution on developing countries?
answer
There were massive increases in production due to the use of crops better suited to advanced agriculture.
question
Recombinant DNA used to make GMOs is _______.
answer
DNA that is patched together using DNA from multiple organisms
question
Organic agriculture is _______.
answer
a food-growing practice that uses no synthetic fertilizers, insecticides, fungicides, or herbicides
question
What is the basic concept of sustainable agriculture?
answer
It is agriculture that does not deplete soils faster than they form.
question
Which of these is true of pollinators in modern agriculture?
answer
While bees are the most important pollinators, crop plants are also pollinated by wasps, moths, butterflies, birds, beetles, flies, and even bats.
question
Which of the following has been the result when pollen from Monsanto-patented GMO plants has contaminated the fields of farmers who do NOT use (or want) GMO crops?
answer
Monsanto sues the farmer with the contaminated plants and claims patent infringement.
question
Which types of people in the United States are most prone to overnutrition?
answer
those in the lower class
question
Which of the following revolutions came about as a response to our dramatically rising human population numbers?
answer
Green Revolution
question
Which of the following agricultural systems would be most susceptible to diseases or pests?
answer
Monocultures
question
Which of the following statements is true about the diversity of our crops today?
answer
The diversity of our crops has decreased with the Green Revolution.
question
The giant foxtail is a plant species that competes with soybean growth on farms. The giant foxtail can be considered a _____.
answer
Weed
question
Which of the following is a potential disadvantage of the biological control of pests?
answer
potential disruption of nontarget species in the ecosystem
question
How is modern genetic engineering similar to what our ancestors did during the agricultural revolution?
answer
During the agricultural revolution humans used selective breeding of plants and animals to produce the most desirable food and livestock possible.
question
Which of the following is a benefit of genetically modified food strains?
answer
resistance to pests
question
We will be able to support more people with the same amount of food supply if most people eat which of the following types of diet?
answer
a vegetarian diet
question
In regard to energy efficiency, aquaculture is _______.
answer
incredibly energy-efficient compared to harvesting fish from open waters
question
In order for a food that you purchase in the store to be "certified organic," it must meet all of the following standards except _______.
answer
the certified organic food must provide proof that it has medicinal use for humans
question
Because of the Green Revolution, the average U.S. cornfield increased its yields by _____ during the 20th century.
answer
Fivefold
question
What was the impact of the Green Revolution on developing countries?
answer
There were massive increases in production due to the use of crops better suited to advanced agriculture.
question
What is the basic concept of sustainable agriculture?
answer
It is agriculture that does not deplete soils faster than they form.
question
What is the basic concept of sustainable agriculture?
answer
It is agriculture that does not deplete soils faster than they form.
question
Which of the following are farms that concentrate on raising large numbers of animals of all the same type in one area?
answer
feedlots
question
We will be able to support more people with the same amount of food supply if most people eat which of the following types of diet?
answer
A vegetarian diet
question
In regard to energy efficiency, aquaculture is _______.
answer
incredibly energy-efficient compared to harvesting fish from open waters
question
What method of pest control operates on the principle that "the enemy of one's enemy is one's friend"?
answer
biocontrol
question
Biological control can have unintended consequences when _______.
answer
the biological control agent becomes invasive and affects nontarget species
question
The practice of integrating biocontrol, crop rotation, alternative tillage methods, and chemical use is called _______.
answer
integrated pest management
question
Which of these is true of pollinators in modern agriculture?
answer
While bees are the most important pollinators, crop plants are also pollinated by wasps, moths, butterflies, birds, beetles, flies, and even bats.
question
In order for a food that you purchase in the store to be "certified organic," it must meet all of the following standards except _______.
answer
The certified organic food must provide proof that it has medicinal use for humans
question
What is the name given to the idea that, when genetically modified organisms are produced, we should not take action until the environmental and human health effects are well documented?
answer
precautionary principle
question
Which of the following is a benefit of genetically modified food strains?
answer
resistance to pests
question
How is modern genetic engineering similar to what our ancestors did during the agricultural revolution?
answer
During the agricultural revolution humans used selective breeding of plants and animals to produce the most desirable food and livestock possible.
question
Recombinant DNA used to make GMOs is _______.
answer
DNA that is patched together using DNA from multiple organisms
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