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ch 16, 7, 17, 18 ET
practice ap tests....
| Question | Answer |
|---|---|
| Approzimately __________ plant and animal species supply 90% of human food | 23 |
| Which type of agriculture is most characteristic of developING countries | traditional |
| Which type of agriculture is most characteristic of developED countries | industrial |
| A single type of crop is generally grown in | industrialized agriculture |
| Which of the following is a type of subsistence agriculture | shifting cultivation on small plots in tropical forests |
| Subsistence farming is what | farmers grow enough food to just feed themselves |
| All of the following factors contributed to a doubling of us food productivity since 1940 except | increased amount of cultivated land |
| Which of the following requires the greatest input of energy | feedlot beef |
| The term undernutrition refers to people who | eat less than the basic min number of daily calories |
| The term malnutrition refers to people who | suffer from lack of protein and other key nutrients |
| Overnutrition is characterized by diets | high in fat |
| The tonnage of annual commercial fish catch from all sources has | increased nearly 5 times since 1950 |
| Government subsidies may | reduce the incentives for farmers to grow crops |
| Sustainable agriculture is characterized by all of the following except | promoting monoculture |
| All of the following are characteristic of sustainable agriculture except | large scale monoculture |
| According to Thomas Eisner the earths landlords are | bugs |
| Aldrin, dieldrin, endrin, lindane, and ddt are examples of | chlorinated hydrocarbons |
| Rachel carson | defended her work against a well funded campaign to discredit her findings |
| The most serious drawback to using chemicals to control pests is | the development of genetic resistance |
| The pesticide treadmill involves | use of more frequent doses of pesticide |
| Which of the following statements is false | the federal insecticide, fungicide and rodenticide act of 1972 requires the epa to immediately remove inadequately tested pesticides from the marketplace |
| Biological control | cost more money than pesticide use |
| Integrated pest management ____than pesticides | requires more expert knowledge about individual pest crop situations |
| Integrated pest management could be promoted by all of the following strategies except | lowering the price of pesticides |
| Which of the following is the best example of environmental remediation | pcb consuming bacteria are sprayed on an area that has soil contaminated with pcb’s |
| Which of the following ecosystems would you consider the least stable | the wheat fields of the far western US |
| In the US about _% of the land is public land | 42 |
| Which is managed on a multiple use basis | national forests |
| Which of the following is managed on restricted use basis | national parks |
| Most temperate forests are ___ forests; most tropical forests are___forests | second growth…old growth |
| Which cutting methods leaves only a few mature seed-producing, wind-resistant trees for regeneration of the forests | seed tree cutting |
| Which of the following statements is false | clear cutting requires more roads |
| Clear cutting if done properly can be useful for some | shade-intolerant species |
| The endangered northern spotted owl | is a symbol of the struggle between environmentalist and timber company owners |
| A lumber company viewing a forest is least likely to see | recreational opportunity |
| An environmentalist viewing a forest is least likely to see | economic value |
| About _% of the earths land area is tropical forests | 6 |
| About ___ of the worlds tropical forests have already been cleared or damaged | ½ |
| Currently the greatest user of tropical lumber is | japan |
| The first country to be involved in a debt for nature swap was | Bolivia |
| Almost ____ of the earth’s ice free land is rangeland | ½ |
| Rangelands | act as crucial watersheds to replenish water sources |
| The term stocking rate refers to | the number of a particular kind of animal grazing on a unit of land |
| The CITES treaty has been helpful in protecting endangered animals and plants by | listing those species and products whose international trade is controlled |
| Reasons that the population size of an exotic species grows rapidly when introduced into a new enviro is b/c | there is a large underutilized food source in the new enviro and the exotic speice has few natural predators in new enviro |
| Ecological functions of the wild species include all of the following except | ecotourism |
| The California condor is a | threatened species |
| The blue whale is extinction prone for all of the following reasons except | low reproductive rate |
| The timber wolf is extinction prone because of its | large size |
| Fruit eating bats on many tropical islands are | keystone species |
| Prairie dogs have almost been driven to extinction by | poison |
| Which of the following is almost extinct because its prime source of food has been killed by poison | black footed ferrets |
| CITES is a | treaty controlling the international trade in endangered species |
| The entity that identifies and list the endangered species is the | fish and wildlife service |
| There are approximately ____listed endangered species in the US | 1,200 |
| When wildlife experts must judge which species to save, they are least likely to choose a species because it | is furry and charismatic |
| Most wildlife management in the US is keyed to | management of the population sizes and habitats to favor game species |
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