Exam 6: Ecosystems and Biomes

-You are in a low- elevation area that receives an average of 51 cm (20 inches) of precipitation per year, with temperatures that are much colder in winter than summer. Which one of the following biomes are you most likely to be in?

-Which of the following would occur if all photosynthetic processes on Earth were to cease?

Biomes with permafrost usually .

Biomes with less than 10 cm (4 inches) of rain a year are .

Which of the following biomes tends to be dominated by coniferous trees?

-Which of the following are examples of regulating ecosystem services?

The goods and services that ecosystems provide to humanity are known as ecosystem services. Identify and explain the four categories of ecosystem services, and describe an example of each.

Which of the following best describes von Liebig's "law of the minimum"?

Of the following, the most water would be held by a soil consisting of equal amounts of .

-From largest to smallest, the soil particle sizes are .

Many ecosystems are damaged by attempts to make a quick profit because .

-This figure depicts a ecosystem service.

-Tropical savannas tend to be than tropical dry forests.

What process converts atmospheric carbon to organic carbon?

Which of the following are examples of provisioning ecosystem services?

What organisms are involved in the process of transpiration?

-The physical weathering of large rocks into smaller pieces is .

Primary productivity in nontropical terrestrial environments is typically limited by what nutrient?

involves the breakdown of parent material by reactions with water and acids.

Which one of the following processes would directly increase the amount of nutrients available to plants?