Exam 3: Ecosystems: What Are They and How Do They Work

Which statement least describes ecosystem modeling?

Referring to the chart of ecological footprints by country, explain why the total carbon footprint for the United States is much more significant at 6.0 than the total carbon footprint for China, which is 5.0 (just one metric gigaton smaller).

Which of the following would be considered a tertiary consumer?

It is estimated that at present scientists have _____________ of the baseline data they need to evaluate the status of ecosystems in the United States.

Match the items listed below with the appropriate choice -On the figure of the hydrological cycle, choose the letter that represents transpiration.

What trophic level does the blue whale occupy in this food web?

Match the items listed below with the appropriate choice -On the generalized structure of the Earth figure, choose the letter of the layer that is comprised of water, ice, and water vapor.

Match the descriptive phrase below with its appropriate cycle. -Deposits found in limestone or dolomite

Submarines explore the

All of the following increase the amount of carbon dioxide in the atmosphere except

A group of individuals of the same species occupying a given area at the same time is called a

CO₂ promotes the ____________________ that warms the troposphere.

A type of acid rain is produced because of sulfur dioxide in the air.

Ammonia is converted to nitrate and finally to nitrogen gas through the process of

Match the items listed below with the appropriate choice -On the figure of the hydrological cycle, choose the letter that represents runoff.

Match the descriptive phrase below with its appropriate cycle. -Affects global warming

The disappearance of tropical rain forests should be a concern to us because

As energy flows in ecosystems, it can be said to

The planet's ____________________ ultimately limits the number of consumers that can live on the planet.

Tropical rain forests cover about 2% of the Earth's land surface, and