Practice Questions

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

The thawing process will likely decrease the abundance and diversity of soil-dwelling organisms in tundra habitats.
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.
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.
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

#Question id: 9178

#Unit 9. Diversity of Life Forms

A fish swimming into an estuary from a river would have which of the following as its greatest physiological challenge?

#Question id: 9179

#Unit 9. Diversity of Life Forms

Which of the following types of organisms is likely to have the widest geographic distribution?

#Question id: 9180

#Unit 9. Diversity of Life Forms

Which of the following statements can be accurately made about light in aquatic environments?

#Question id: 9181

#Unit 9. Diversity of Life Forms

Turnover of water in temperate lakes during the spring and fall is caused by which of the following?

#Question id: 9183

#Unit 9. Diversity of Life Forms

If you are interested in observing a relatively simple community structure in a clear water lake, you would do well to choose diving into ________.

#Question id: 9184

#Unit 9. Diversity of Life Forms

Which aquatic biome listed here is one of the most productive on Earth, and why?