ENSC EXAM 2 QUESTIONS | WITH COMPLETE SOLUTIONS!!
In general, funding for recovery programs is given to species that are - (answer)most well known
A/an __________ species is one that requires a large area of generally undisturbed habitat to maintain
viable populations. By saving this habitat, many other species benefit. - (answer)umbrella
The location of specific biomes can be predicted based on - (answer)precipitation and temperature
Which of the following is true?
a. Humans only began causing extinctions in the past 150 years.
b. Humans may have caused extinctions thousands of years ago, but our impact has recently increased.
c. Humans have been causing extinctions for thousands of years and we are still causing extinctions at
about the same rate.
d. Humans have never has significant impact on species extinction until the past four decades.
e. Humans are responsible for many of the mass extinctions in the geologic record. - (answer)b. Humans
may have caused extinctions thousands of years ago, but our impact has recently increased.
Of the following, the most significant cause for high rate of animal extinctions is - (answer)habitat
destruction worldwide
Ecological diversity is a measure of the number of - (answer)niches, trophic levels, and ecological
processes of a biological community
We are usually referring to species diversity when we talk about biodiversity. However, genetic diversity
is also important to ecological systems because diverse genes - (answer)are necessary for a population
to evolve in a changing environment
The total number of living species is probably - (answer)between 2 and 50 million
Approximately how many species have been identified on Earth? - (answer)about 1.7 million
, ENSC EXAM 2 QUESTIONS | WITH COMPLETE SOLUTIONS!!
Species diversity is most concentrated in - (answer)South America, Africa, and Southeast Asia
Methane is - (answer)produced anywhere organic matter decays without oxygen
Which of these is unlikely to result from climate change? - (answer)movement of tectonic plates
Most of the excessive carbon dioxide that is expected to cause global warming is generated by -
(answer)burning of fossil fuels, production of cement, and clearing of forests
What are the ecological implications of global warming? - (answer)plants and animals that are residing
in fragmented habitats may not be able to move to a suitable habitat
Which of these is true about ways that we might slow climate change according to climate policy
analysts? - (answer)developing a variety of existing strategies, such as conservation, reforestation, and
alternative energy, could dramatically slow climate change
which of these best describes the comparison of observed changes in CO2 production and IPCC model
scenarios of expected CO2 production? - (answer)observed CO2 production has exceeded the worst
model scenarios
According to ice core data, - (answer)carbon dioxide and temperature have the same pattern of
variation
The "Keeling curve" showing CO2 measurements at Mauna Loa, Hawaii, shows that concentrations of
CO2 have reached approximately what level, in parts per million (ppm)? - (answer)400 ppm
Which of the following would have the highest albedo? - (answer)fresh snow
In general, funding for recovery programs is given to species that are - (answer)most well known
A/an __________ species is one that requires a large area of generally undisturbed habitat to maintain
viable populations. By saving this habitat, many other species benefit. - (answer)umbrella
The location of specific biomes can be predicted based on - (answer)precipitation and temperature
Which of the following is true?
a. Humans only began causing extinctions in the past 150 years.
b. Humans may have caused extinctions thousands of years ago, but our impact has recently increased.
c. Humans have been causing extinctions for thousands of years and we are still causing extinctions at
about the same rate.
d. Humans have never has significant impact on species extinction until the past four decades.
e. Humans are responsible for many of the mass extinctions in the geologic record. - (answer)b. Humans
may have caused extinctions thousands of years ago, but our impact has recently increased.
Of the following, the most significant cause for high rate of animal extinctions is - (answer)habitat
destruction worldwide
Ecological diversity is a measure of the number of - (answer)niches, trophic levels, and ecological
processes of a biological community
We are usually referring to species diversity when we talk about biodiversity. However, genetic diversity
is also important to ecological systems because diverse genes - (answer)are necessary for a population
to evolve in a changing environment
The total number of living species is probably - (answer)between 2 and 50 million
Approximately how many species have been identified on Earth? - (answer)about 1.7 million
, ENSC EXAM 2 QUESTIONS | WITH COMPLETE SOLUTIONS!!
Species diversity is most concentrated in - (answer)South America, Africa, and Southeast Asia
Methane is - (answer)produced anywhere organic matter decays without oxygen
Which of these is unlikely to result from climate change? - (answer)movement of tectonic plates
Most of the excessive carbon dioxide that is expected to cause global warming is generated by -
(answer)burning of fossil fuels, production of cement, and clearing of forests
What are the ecological implications of global warming? - (answer)plants and animals that are residing
in fragmented habitats may not be able to move to a suitable habitat
Which of these is true about ways that we might slow climate change according to climate policy
analysts? - (answer)developing a variety of existing strategies, such as conservation, reforestation, and
alternative energy, could dramatically slow climate change
which of these best describes the comparison of observed changes in CO2 production and IPCC model
scenarios of expected CO2 production? - (answer)observed CO2 production has exceeded the worst
model scenarios
According to ice core data, - (answer)carbon dioxide and temperature have the same pattern of
variation
The "Keeling curve" showing CO2 measurements at Mauna Loa, Hawaii, shows that concentrations of
CO2 have reached approximately what level, in parts per million (ppm)? - (answer)400 ppm
Which of the following would have the highest albedo? - (answer)fresh snow
