Ecology 2

29問 • 1年前

Martha

通報

問題一覧

Nitrate and ammonium form of nitrogen are lost as they go with infiltrating water down the soil profile?

D) Leaching

A process by which organic nitrogen present in proteins, amino acids are converted into ammonia

A) Nitrification

The benthic zone in an aquatic biome

A) often supports communities of organisms that feed largely on detritus.

Where would an ecologist find the most phytoplankton in a lake?

C) photic zone

Which of the following is not true about estuaries?

D) Estuaries usually contain no or few producers.

Which of the following statements best describes the effect of climate on biome distribution?

C) It is not only the average climate that is important in determining biome distribution, but also the pattern of climatic variation.

Probably the most important factor(s) affecting the distribution of biomes is (are)

D) climate.

In which of the following terrestrial biome pairs are both dependent upon periodic burning?

B) chaparral and savanna

The oceans affect the biosphere in all of the following ways except

D) regulating the pH of freshwater biomes and terrestrial groundwater.

Which lake zone would be absent in a very shallow lake?

B) aphotic zone

Which of the following biomes is correctly paired with the description of its climate?

D) tropical forests-nearly constant day length and temperature

A population is correctly defined as having which of the following characteristics? I. inhabiting the same general area II. individuals belonging to the same species III. possessing a constant and uniform density and dispersion

C) I and II only

How are matter and energy used in ecosystems?

A) Matter is cycled through ecosystems; energy is not.

To recycle nutrients, the minimum an ecosystem must have is

B) producers and decomposers.

The producers in aquatic ecosystems include organisms in which of the following groups?

D) A, B, C are all correct

How does phosphorus normally enter ecosystems?

C) rock weathering

Which of the following statements is correct about biogeochemical cycling?

B) The phosphorus cycle is a cycle that involves the weathering of rocks.

Which of the following describes carbon dioxide, methane, and water vapor re-reflecting infrared radiation back toward earth

D) greenhouse effect

Which of the following is caused by excessive nutrient runoff into lakes?

D) eutrophication

Which of the following statements best describes why biologists are currently concerned with global warming and the thawing of permafrost in many areas of the tundra biome?

B) The bacterial decomposition of the thawed organic materials on the widespread areas of the tundra will produce large quantities of CO2, which will add to greenhouse gases and exacerbate global warming.

Which of the following terms includes all of the others?

B) biodiversity

Which of the following is the most direct threat to biodiversity?

D) habitat destruction

The greatest cause of the biodiversity crisis that includes all of the others i

D) overpopulation of humans.

Which of the following would a landscape ecologist consider in designing a nature reserve?

D) A, B, C are all correct

Which of the following statements is best describes about landscape ecology?

B) It is the application of ecological principles to land-use planning.

A movement corridor

C) unites otherwise isolated patches of quality habitat.

Relatively small geographic areas with high concentrations of endemic species are known as

C) biodiversity hot spots.

Which of the following statements about biodiversity hot spots for plants is correct?

A) They are locations that have high concentrations of endemic species

Biodiversity hot spots are not necessarily the best choice for nature preserves because

C) a hot spot for one group of organisms may not be a hot spot for another group.

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問題一覧

Nitrate and ammonium form of nitrogen are lost as they go with infiltrating water down the soil profile?

D) Leaching

A process by which organic nitrogen present in proteins, amino acids are converted into ammonia

A) Nitrification

The benthic zone in an aquatic biome

A) often supports communities of organisms that feed largely on detritus.

Where would an ecologist find the most phytoplankton in a lake?

C) photic zone

Which of the following is not true about estuaries?

D) Estuaries usually contain no or few producers.

Which of the following statements best describes the effect of climate on biome distribution?

C) It is not only the average climate that is important in determining biome distribution, but also the pattern of climatic variation.

Probably the most important factor(s) affecting the distribution of biomes is (are)

D) climate.

In which of the following terrestrial biome pairs are both dependent upon periodic burning?

B) chaparral and savanna

The oceans affect the biosphere in all of the following ways except

D) regulating the pH of freshwater biomes and terrestrial groundwater.

Which lake zone would be absent in a very shallow lake?

B) aphotic zone

Which of the following biomes is correctly paired with the description of its climate?

D) tropical forests-nearly constant day length and temperature

C) I and II only

How are matter and energy used in ecosystems?

A) Matter is cycled through ecosystems; energy is not.

To recycle nutrients, the minimum an ecosystem must have is

B) producers and decomposers.

The producers in aquatic ecosystems include organisms in which of the following groups?

D) A, B, C are all correct

How does phosphorus normally enter ecosystems?

C) rock weathering

Which of the following statements is correct about biogeochemical cycling?

B) The phosphorus cycle is a cycle that involves the weathering of rocks.

Which of the following describes carbon dioxide, methane, and water vapor re-reflecting infrared radiation back toward earth

D) greenhouse effect

Which of the following is caused by excessive nutrient runoff into lakes?

D) eutrophication

Which of the following statements best describes why biologists are currently concerned with global warming and the thawing of permafrost in many areas of the tundra biome?

Which of the following terms includes all of the others?

B) biodiversity

Which of the following is the most direct threat to biodiversity?

D) habitat destruction

The greatest cause of the biodiversity crisis that includes all of the others i

D) overpopulation of humans.

Which of the following would a landscape ecologist consider in designing a nature reserve?

D) A, B, C are all correct

Which of the following statements is best describes about landscape ecology?

B) It is the application of ecological principles to land-use planning.

A movement corridor

C) unites otherwise isolated patches of quality habitat.

Relatively small geographic areas with high concentrations of endemic species are known as

C) biodiversity hot spots.

Which of the following statements about biodiversity hot spots for plants is correct?

A) They are locations that have high concentrations of endemic species

Biodiversity hot spots are not necessarily the best choice for nature preserves because

C) a hot spot for one group of organisms may not be a hot spot for another group.