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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?

#Unit 10. Ecological Principles
  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: 18600

#Unit 13. Methods in Biology

A coin is tossed 6 times. The probability of getting exactly 2 heads is
TLS Online TPP Program

#Question id: 1063

#Unit 4. Cell Communication and Cell Signaling

A key feature of all viral infections is the
TLS Online TPP Program

#Question id: 23407

#General Aptitude

A reporter says the number of bus accidents is more than that of car accidents, the number of car accidents is less than that of bus accidents. Which of the following conclusion can be drawn the report?
TLS Online TPP Program

#Question id: 8704

#Unit 9. Diversity of Life Forms

To apply the principle of maximum parsimony to construction of a phylogenetic tree, ________.
TLS Online TPP Program

#Question id: 3425

#Unit 11. Evolution and Behavior

Many evolutionary forces are operating in population. In study, within population increase genetic variation due to -----A-----while decrease genetic variation due to ------B-----. Between populations increase genetic variation due to -----C-----while decrease genetic variation due to ------D-----.