Exam 16: Biogeographic Processes

This photo depicts:

The amount of nitrogen fixation from human activity is decreasing.

Cold-blooded animals adapt to cold temperatures by raising their body temperatures.

Nitrogen fixation indirectly reduces the oxygen content of the ocean.

The cow parsnips in the foreground of the photo have adapted to:

The amount of Earth's land surface that is transformed by human use is nearest to:

For an ecosystem, fire, flood, volcanic eruptions, storm waves, and high winds are examples of:

On the illustration, letter B is:

The sequence of distinctive plants and animal communities occurring within a given area of newly formed land or land cleared of plant cover is called:

The earliest communities developing in an area represent the:

This photo illustrates:

The dry weight of living matter in an ecosystem within a designated surface area is the:

What is biodiversity? Cite three ways that biodiversity is important.

The selection of organisms by their survival in the environment in a process similar to selection of plants or animals by breeders is known as __________________.

The most important of the biogeochemical cycles is the sulfur cycle.

On the illustration, letter E shows:

Geomorphic factors such as slope steepness, slope aspect, and relief have little to no impact on ecosystems.

On the illustration, letter C shows:

Vegetation growth on abandoned farmland exemplifies primary succession.

One species feeding on another is BEST called: