Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 24244
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.
More Questions
TLS Online TPP Program

#Question id: 11980

#Section 1: Ecology

 A female cat in heat urinates more often and in many places. Male cats congregate near the urine deposits and fight with each other. Which of the following is a proximate cause of this behaviour of increased urination?
TLS Online TPP Program

#Question id: 10751

#Section 2: Evolution

Possible interaction between populations in following manner ,which of the following best represent for negative ineteracion ?
TLS Online TPP Program

#Question id: 9575

#Section 1: Ecology

The warm counter current known as El niño moves southward along the coast of peru each year around christmastime. When this counter current flows strongly, it displaces the cold peru current offshore and results in:
TLS Online TPP Program

#Question id: 10590

#Section 2: Evolution

Which of the following is correct figure? 
TLS Online TPP Program

#Question id: 4616

#Section 2: Evolution

Logically, which of these should cast the most doubt on the relationships depicted by an evolutionary tree?