A) agricultural
B) medicinal
C) consumptive use
D) indirect
E) no
G) A) and D)
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A) The really important species of animals and plants are those that we rely on for food.If we can protect them,we can avoid any harmful effects even if other species go extinct.
B) The size of tropical rain forests have been reduced from 14 percent to 6 percent.
C) Exotic species play a role in 50 percent of extinctions.
D) Coral reefs may become extinct in the next 40 years.
E) Overexploitation by human activities can lead to a loss of biodiversity.
G) B) and D)
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A) zebra mussels introduced to the Great Lakes
B) dandelions planted by pioneers as salad greens
C) the mongoose brought to Hawaii to control rats
D) the brown tree snake in Guam
E) buffalo in the United States
G) A) and B)
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A) seeks to design reserves that allow minimum impact on the species in the reserve.
B) seeks to return damaged ecosystems to their state prior to the damage.
C) seeks to use breeding programs in zoos to return extinct species to the wild.
D) seeks to import exotic species into specific areas.
E) seeks to encourage sustainable human development.
G) B) and D)
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A) the inner core area that is the reserve
B) the inner core that allows only research,light tourism,and limited sustainable cultural use
C) the buffer zone that surrounds the core
D) the buffer zone that allows sustainable human development
E) the transition zone that surrounds the buffer zone
G) B) and E)
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A) eutrophication-a lake dies due to lack of nutrients
B) acid deposition-water vapor and exhausts combine to form wet or dry acid deposits
C) climate change-changes in the Earth's climate are causing the sea levels to rise
D) organic chemicals-synthetic chemicals mimic hormones and cause abnormal growth and behavior in wild animals
E) ozone depletion-CFCs like Freon have chlorine atoms that break down the ozone shield
G) A) and B)
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A) Evolution can only act on phenotypes that are present in the population.
B) The greater the genetic diversity of a population,the more likely that one organism will have an adaptive trait when the environment changes.
C) Lower genetic diversity can lead to the extinction of species.
D) Higher genetic diversity leads to more species in the ecosystem.
E) Low genetic diversity can lead to greater susceptibly to pathogens.
G) A) and E)
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A) loss of water due to evaporation
B) provide electricity for many countries
C) increase in salinity due to evaporation and runoff
D) increase in sediment buildup leads to less available water
E) depletion of river water
G) A) and D)
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A) pollination of flowers by bees
B) production of antibiotics from fungi
C) increasing the survival rate of childhood leukemia from 10 percent to 90 percent
D) increasing the availability of food for the human population
E) supplies building materials for new construction
G) A) and C)
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A) Pollution is an undesirable alteration of the environment.
B) Pollution increases with an increasing world population.
C) The impact of pollution by humans is proportional to the world population.
D) Pollution does not have an effect on the living environment.
E) It is a side effect of resource consumption.
G) A) and B)
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A) renewable resources.
B) nonrenewable resources.
C) squandered resources.
D) fossil fuels.
E) minerals.
G) D) and E)
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A) biodiversity is desirable for the biosphere and humans.
B) all animals have the same rights or legal status as humans.
C) biodiversity has value in and of itself,regardless of any practical human benefits.
D) extinctions due to human actions are undesirable.
E) the complex interactions of ecosystems support biodiversity and are desirable.
G) D) and E)
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A) colonization when new settlers arrive in an area.
B) accidental transport by ship or plane without anyone's knowledge.
C) introduction as new agriculture by settlers.
D) horticulture use.
E) expansion and exploration of the new species itself.
G) A) and E)
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B) False
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A) agricultural
B) medicinal
C) consumptive use
D) indirect
E) no
G) A) and C)
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A) Conservation biology relies on many subdisciplines of biology including genetics,physiology,and systematics.
B) Conservation biology relies on both scientists and government officials for conservation management.
C) Conservation biology depends on the education of the public to lead to better consumer choices that facilitate conservation practices.
D) Conservation biology relies on both biologists and social scientists to determine courses of action.
E) Conservation biology proposes that ecosystems take precedence over activities that sustain human populations.
G) A) and C)
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A) drinking water
B) irrigation of crops
C) cooking
D) bathing and flushing toilets
E) household uses
G) A) and C)
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A) nonrenewable resources
B) contribute to greenhouse gases
C) oil and coal
D) formed during the last 1,000 years
E) The United States uses more than half of the world's supply of fossil fuels.
G) B) and E)
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