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

The water cycle, hydrogen cycle, phosphorous cycle, and sulfur cycle are all ____________________.

Which of the following are properties of water?

Which of the following choices best describes how an ecologist would typically study an ecosystem? The ecologist would study

Bacteria, deer, humans, and spiders are all examples of ____________________.

According to the second law of thermodynamics, energy can be recycled.

Gravity is one of the three factors that sustain life on Earth.

Organisms that feed on both plants and animals are called

The hydrologic cycle is driven primarily by

Transfer of carbon among organisms depends primarily on

Geologists find rock and soil samples in the

Algae and aquatic plants are both ____________________ producers.

Match the items listed below with the appropriate choice -On the figure above, choose the letter that represents heat.

The processes that lead to geological erosion are essential to the movement of phosphorous through the biosphere.

The ____________________ occupies those parts of the atmosphere, hydrosphere, and geosphere where life is found.

Ammonium ions are converted to nitrite ions and nitrate ions through the process of

Which one of the following is not one of the common phosphorous reservoirs in the ecosystem?

The ____________________ cycle does NOT include the atmosphere as a reservoir.

Over land, about what percent of the water vapor in the atmosphere comes from water that has transpired from the surface of plants?

All of the following are sources of phosphorous except

Most of the energy input in a food chain is