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| 1 | |
What does the term biodiversity refer to? |
| | A) | the variety of life on Earth |
| | B) | the major terrestrial ecosystems of the planet |
| | C) | the natural resources of the planet |
| | D) | the habitats of threatened and endangered species |
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| 2 | |
Conservation biology is a long established field of study that aims to preserve biodiversity. |
| | A) | True |
| | B) | False |
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| 3 | |
Which of the following ethical principles is supported by conservation biology? |
| | A) | biodiversity brought about by evolutionary change is of no value |
| | B) | extinctions due to human impacts that are deemed necessary for humans are acceptable |
| | C) | ecosystems should be simplified so that they are more manageable |
| | D) | biodiversity is desirable for the biosphere and for humans |
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| 4 | |
A population with limited __________ diversity is much more likely to become extinct. |
| | A) | community |
| | B) | genetic |
| | C) | ecosystem |
| | D) | landscape |
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| 5 | |
True or False: Biodiversity is not evenly distributed; some regions of the world, called hotspots, contain large concentrations of species. |
| | A) | True |
| | B) | False |
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| 6 | |
Which of the following is a direct value of biodiversity? |
| | A) | ecotourism |
| | B) | prevention of soil erosion |
| | C) | waste disposal in biogeochemical cycles |
| | D) | medicines produced from plants |
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| 7 | |
Which of the following is an indirect value of biodiversity? |
| | A) | ecotourism |
| | B) | agriculture |
| | C) | consumptive use of harvested wood |
| | D) | medicines produced from plants |
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| 8 | |
Which of the following are causes of species extinctions? |
| | A) | habitat loss |
| | B) | alien/invasive species |
| | C) | pollution |
| | D) | All of these are causes of extinction. |
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| 9 | |
In the United States, the cause of most species extinctions is |
| | A) | alien species. |
| | B) | pollution. |
| | C) | disease. |
| | D) | habitat loss. |
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| 10 | |
Which of the following ecosystems is particularly susceptible to the detrimental effects of alien species? |
| | A) | coral reefs |
| | B) | tropical rainforests |
| | C) | islands |
| | D) | All ecosystems are equally influenced by alien species. |
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| 11 | |
How have alien species been introduced to ecosystems? |
| | A) | through colonization |
| | B) | through horticulture |
| | C) | through global trade and travel |
| | D) | Alien species have been introduced in all of these ways. |
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| 12 | |
Which of the following correctly matches a specific type of pollution to its cause? |
| | A) | power plants and cars – acid deposition |
| | B) | chlorofluorocarbons – eutrophication |
| | C) | solid waste management – ozone depletion |
| | D) | runoff from agricultural fields and wastewater – global climate change |
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| 13 | |
Greenhouse gases get their name because they |
| | A) | are produced by plants. |
| | B) | are above the average atmospheric temperature. |
| | C) | produce solar radiation. |
| | D) | hinder heat from escaping back into space from Earth. |
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| 14 | |
With improved technology and an increased fishing fleet, the harvest of fish in that last decade in the United States has |
| | A) | increased more than in the previous 50 years. |
| | B) | increased due to the harvest of previously discarded fish. |
| | C) | declined significantly. |
| | D) | remained constant due to an increase in the available fish. |
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| 15 | |
Why is preservation of a keystone species important? |
| | A) | because a keystone species is the most prevalent species within a community |
| | B) | because keystone species influences the viability of a community, thought it may not have a large population |
| | C) | because a keystone species could be detrimental if it is introduced through colonization, horticulture, agriculture, or accidental transport |
| | D) | because a keystone species is not critical to an ecosystem, but evokes an emotional response from humans |
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| 16 | |
The subdiscipline of conservation biology that seeks to return ecosystems to their former state is called |
| | A) | bioinformatics. |
| | B) | ecology. |
| | C) | evolutionary biology. |
| | D) | restoration ecology. |
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| 17 | |
In restoring habitats, it is best to wait until the habitat can be thoroughly assessed to begin restoration. |
| | A) | True |
| | B) | False |
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| 18 | |
A sustainable society aims to |
| | A) | protect endangered and threatened species in natural reserves. |
| | B) | create new sources of energy that can provide more for future generations. |
| | C) | protect biodiversity despite the influence on goods and services. |
| | D) | protect biodiversity while maintaining the goods and services provided to humans. |
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| 19 | |
Resources that can be naturally replenished, like solar energy, are termed _________. Resources that are in limited supply are termed __________; these include things like _________. |
| | A) | renewable; nonrenewable; wind power |
| | B) | renewable; nonrenewable; fossil fuels |
| | C) | nonrenewable; renewable; hydropower |
| | D) | nonrenewable; renewable; natural gas |
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| 20 | |
Planting several varieties of crops, or polyculture, |
| | A) | is a less desirable farming practice than monoculture. |
| | B) | will increase the amount of herbicides needed to kill weeds. |
| | C) | can reduce the chances that crops are decimated by pests or diseases. |
| | D) | cannot be used in conjunction with crop rotation. |
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