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TLS Online TPP Program

#Question id: 12755

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?

#Section 5: Applied Ecology & Evolution
  1. The thawing process will likely decrease the abundance and diversity of soil-dwelling organisms in tundra habitats.
  2. 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.
  3. Oil and coal deposits will thaw and rise to the surface (because of their lower density) of the tundra, destroying millions of acres of arctic habitat.
  4. Populations of humans inhabiting the arctic will have to move to more southern latitudes, resulting in in- creased competition for resources in already densely populated areas.
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TLS Online TPP Program

#Question id: 9196

#Section 2: Evolution

If all individuals in the last remaining population of a particular frog species were all highly elated, which type of diversity would be of greatest concern when planning to prevent the species from going extinct?
TLS Online TPP Program

#Question id: 9197

#Section 2: Evolution

What is the biological significance of genetic diversity between populations?
TLS Online TPP Program

#Question id: 9198

#Section 2: Evolution

Tropical forests are being converted to farm or pasture land at an alarming rate, and one major focus is on the biodiversity and the impact to these ecosystems. What is a direct benefit to humans that helps explain why these forests need to be preserved?
TLS Online TPP Program

#Question id: 9199

#Section 2: Evolution

Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?
TLS Online TPP Program

#Question id: 9200

#Section 2: Evolution

During the inventory of bacterial genes present in the Sargasso Sea, a deep isolated area in the middle of the Atlantic Ocean, a research team concluded that at least 1,800 bacterial species were present. Based on what you might predict about the habitat structure of such an area, what kind of bacterial diversity would you expect to see in tropical coral reef waters?
TLS Online TPP Program

#Question id: 9202

#Section 2: Evolution

Which of the following statements regarding extinction is accurate?