Exam 26: Biomes

Douglas firs repeatedly replace themselves after fires.

Average precipitation of 50-165 cm/year is scattered throughout the year with warm summers and cool to cold winter. The forest leaf canopy is not intact year round. Identify this biome.

When high winds tear away matted vegetation of tundra, the resulting barren patch is called a ________.

Which of the following biomes has a significant number of plants that have adapted to their environment through the evolution of CAM photosynthesis?

A characteristic vegetational type found in the desert biome is:

Naturally occurring grasslands are usually found toward the interiors of continental masses. They tend to intergrade with ________ in areas where annual precipitation drops below 25 cm (10 inches) annually.

Another name for the northern coniferous or boreal forest is the ________.

Many of the grasslands of the world have been converted to ________.

No flowering plants occur in the true tundra.

The very large trees ( the coastal redwoods) in the coastal forest biome can attribute their growth and longevity, at least in part, to the presence of fog that lessens transpiration.

Due to permafrost in tundra areas soils are wet and marshy even though the region received limited precipitation.

Permafrost, shallow root systems, subzero temperatures and long winters are characteristic of the:

The greatest diversity of species, both flora and fauna, is found in the tropical rain forest.

The giant saguaro cactus is found in which North American biome?

The climate consists of dry, hot summers and cool, moist winters. The vegetation is characterized by having shrubs with multiple stems arising at the base and extensive root system. This description of climate and vegetation describe the ________biome.

Thick waxy cuticle layers and dense hairs on leaves are morphological adaptations to:

The most fragile of the biomes is the

The biome with the greatest diversity of flora and fauna is the

This biome is characterized by having 200-400 cm of precipitation per year and vegetation dominated by tall, broad leaved evergreen trees.

Terrestrial biotic communities as they occur on a continental or global scale are referred to as ________.