Exam 42: Ecosystems

When describing food webs, the term "everything is connected to everything" is fitting. Why?

The uppermost layer of soil that is saturated with water is referred to as ____.

The effect of nitrification is to ____.

Most of the energy within an ecosystem is lost ____.

Most fresh water ____.

On an annual basis, the greatest flow of carbon between nonbiological reservoirs takes place between ____.

Match the trophic category to the correct statement. The trophic categories may be used once, more than once, or not at all. -this is a primary consumer

What ions form when atmospheric carbon dioxide dissolves in seawater?

The amount of energy that flows through a detrital food web is ____ that which flows through a grazing food web.

The majority of Earth's water is in ____.

Match the trophic category to the correct statement. The trophic categories may be used once, more than once, or not at all. -a bear feeding on blueberries is functioning as this

Producers take up ____ from the atmosphere and incorporate it into their tissues through the process of ____.

The biological components of a biogeochemical cycle include ____.

Movement of water results in movement of other nutrients. What element or elements have soluble forms that flowing water can carry from place to place?

Burning of fossil fuels, use of synthetic fertilizers, and industrial livestock production all add which compound to the atmosphere?

Which gas is increasing the most in the atmosphere and causing the biggest threat to the world by intensifying the greenhouse effect?

An ecosystem is defined as ____.

Stretching from South Dakota to Texas and supplying irrigation water to 27% of the nation's crops, what aquifer is the largest aquifer in the United States?

An energy pyramid shows the ____.

In ecosystems, primary consumers are ____.