Evergreen trees that hold on to carbon and nitrogen in the Taiga are examples of _____ factors.

Which biome is characterized by organisms that are inactive during the day and burrow underground?

Which biome is characterized by tree frogs, large vines, and >200cm of annual rain.

Which biome is characterized by having no reptiles or amphibians, but furred mammals and an abundance of migratory waterfowl?

The two major factors influencing vegetation in biomes are:

Chaparral have been heavily impacted by humans because:

In a rainforest, most of the sunlight is captured by trees in the upper canopy, therefore only:

Human impact on temperate forests include:

Oceans cover approximately:

Which group of producers form the first trophic level of a pelagic marine ecosystem?

In desert biomes, flowering usually coincides with:

In addition to northern latitudes, patches of tundra-like plant communities are also found:

Which of the following is NOT a characteristic of temperate deciduous forests?

Which of the following is NOT true of climax communities?

Which is an example of a stage in secondary succession?

Primary succession is:

What is the dominant organism colonizing bare rock during primary succession?

The dominant organisms that colonize bare rock in primary succession are called:

Ecologists have learned that succession is influenced by many factors other than climate, including:

Wet meadows & floating bogs are examples of a stage in:

Savannas differ from grasslands by having:

Which of the following is NOT typical of a lake ecosystem?

What is the term used to describe a shallow, partially enclosed area where freshwater enters the ocean?

This biome has snow during the year, lacks trees, and has a short summer.

Permafrost is only found in the:

Upper layer of the ocean where the sun's rays penetrate.

Region with rooted vegetation in a freshwater ecosystem.

Biome that has a long growing season, supports trees, has a change of seasons, and relatively evenly distributed annual precipitation.

Organisms that live on the bottom of marine or freshwater ecosystems.

Biome dominated by grasses and drought-resistant trees.

Contains epiphytic plants that are adapted for high humidity.

Amount of oxygen used by decomposer organisms to degrade organic molecules in aquatic ecosystems.

Most temperate deciduous forests have survived without impact from human activity due to their location.

Hurricanes, flooding, and fire are examples of disturbances that result in secondary succession.

In general, the soil of a climax community is less fertile than the soil of pioneer communities.

Mangrove swamps are tropical marine shoreline ecosystems dominated by trees.

In an aquatic ecosystem grasses are often found in central deeper portions of the body of water.

Organisms in each biome have adapted to the climatic conditions typical of that biome.

In the open ocean, light penetrates many miles to the ocean floor.

Most grasslands in North America have been heavily influenced by:

Sewage levels are more concentrated in freshwater than in marine environments.

In estuaries, the areas where fresh and marine water meet are termed:

Wetlands containing trees are called:

Wetlands containing only grasses and reeds are called:

Collections of algae, animals, & fungi attached to stream & river rocks.

Which of the following ecosystems contains stationary water?

What has led to the destruction of marine ecosystems?

Coral reef ecosystems require sunlight.

Organisms like this one make their own light & are found in:

Biome with the least human interaction.

In the US, which biome has been overexploited by logging?

The biome with the most plant and animal diversity is the:

You would expect to find this species and other water-retainers in which biome?

Temperature is usually _____ at higher altitudes & _____ closer to the equator.

Every biome has equal annual levels of temperature and precipitation.

Terrestrial climax communities with wide geographic distribution.

Once succession reaches a climax community:

Which community type utilizes matter & energy more efficiently?

The process of succession can stop at any point.

The Australian wildfires have led to what type of succession:

Lōihi Seamount in Hawaii is a submarine volcano, its eruption creates new sediment & begins the process of _____ succession:

In primary succession, which of these would colonize an area first:

In primary succession, which of these would be the final colonizers:

This "rock-decomposer" is called: