A) damage by off-road vehicles.
B) air pollution.
C) conversion to farmland.
D) global climate change.
E) mineral extraction.
G) A) and E)
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A) It is a highly desirable place to live.
B) It is only found in the Mediterranean area.
C) It has very poor soil but supports an extremely diverse array of species.
D) It has a large total area.
E) It contains a high number of unique species.
G) B) and D)
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A) the Coriolis Effect.
B) the Second Law of Thermodynamics.
C) precipitation and temperature.
D) seasonal variations in sunspots.
E) large landforms in the area.
G) A) and B)
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A) Humans may have been causing extinctions thousands of years ago, but our impact has recently increased.
B) Humans are responsible for many of the mass extinctions in the geologic record.
C) Humans only began causing extinctions in the past 150 years.
D) Humans have never had significant impact on species extinctions until the past four decades.
E) Humans have been causing extinctions for thousands of years and we are still causing extinctions at about the same rate.
G) A) and B)
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B) False
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A) wide precipitation range and narrow temperature range.
B) narrow precipitation and temperature range.
C) wide precipitation and temperature range.
D) wide temperature range and narrow precipitation range.
E) varying temperature and narrow precipitation range.
G) A) and D)
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A) fens are fed by groundwater, bogs are fed by rainfall.
B) fens have many trees, bogs have none.
C) fens are always on the coast, bogs are inland.
D) bogs are found only in brackish areas.
E) There are no differences between fens and bogs, they are synonymous.
G) B) and E)
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A) interbreed threatened species with common species.
B) increase an endangered species population until it is no longer endangered.
C) invest corporate capital in species maintenance.
D) study the species for a better understanding of its role in the biological community.
E) protect the species to aid other organisms and resources in the ecosystem.
G) B) and E)
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A) we consider other groups, such as mammals, to be more interesting and desirable.
B) worldwide there are relatively few invertebrates when compared to plants.
C) it is extremely difficult to identify and count invertebrates.
D) Since there are 532 invertebrates considered endangered, none of these are true.
E) invertebrates are more numerous and the relative percentages are similar.
G) B) and C)
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B) False
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A) different kinds of organisms within a community or ecosystem.
B) different versions of the same gene in an ecological community.
C) sizes, colors, and shapes of organisms within an ecological community.
D) niches, trophic levels, and ecological processes of a biological community.
E) different species in an ecosystem.
G) C) and D)
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B) False
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A) marine biome.
B) tropical rainforest biome.
C) tundra biome.
D) desert biome.
F) A) and D)
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A) arctic tundra.
B) tropical rainforests.
C) grasslands.
D) temperate forests.
E) southern pine forests.
G) C) and E)
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A) mammals and reptiles.
B) birds and fish.
C) fungi.
D) invertebrates.
E) multicellular plants.
G) A) and C)
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A) in the most danger.
B) the most important.
C) most well known.
D) most numerous.
E) keystone species.
G) B) and E)
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