apes quiz 1

a farmer observes that increasingly higher concentrations of a particular pesticide has been required each year over the past 10 years to achieve the same level of effectiveness on a specific insect pest. Which of the following best helps explain the observation?

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which of the following best illustrates the concept of the tragedy of the commons

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if the carrying capacity of a population of fish was 1,000 what would be the MSY and a good OSY

MSY: 500 OSY: 400

Which of the following is the best illustration of the pesticide treadmill

increased use of pesticides to eradicate genetically-resistant pests

what is a negative consequence of free-range grazing?

over-grazing could lead to desertification and the loss of arable land

overgrazing of public land by privately-owned livestock is an example of the

tragedy of the commons

an indoor or outdoor structure designed to maximize output of livestock is known as

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graph question

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what is the reason for the rapid increase in grain production starting around the 1960's

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which of the following is likely to minimize soil erosion

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which of the following methods of agricultural irrigation results in the loss of the least amount of water by evaporation

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Salmon farming threatens the health of wild salmon stocks primarily because...

farmed salmon can spread parasites disease to wild salmon