Trees are rare in the savanna biome because of
A) insufficient annual precipitation.
B) acidic soils.
C) extreme winter temperatures.
D) large variations in seasonal rainfall.
E) permafrost.

extreme winter temperatures.

Which of the following statements best describes the effect of climate on biome distribution?
A) Average annual temperature and precipitation are sufficient to predict which biome will be
found in an area.
B) Seasonal fluctuation of temperature is not a limiting factor in biome distribution if areas have
the same annual temperature and precipitation means.
C) Not only is the average climate important in determining biome distribution, but so is the
pattern of climatic variation.
D) Temperate forests and grasslands are different biomes because they receive a different quality
and quantity of sunlight, even though they have essentially the same annual temperature and
precipitation.
E) Correlation of climate with biome distribution is sufficient to determine the cause of biome
patterns.

Not only is the average climate important in determining biome distribution, but so is the
pattern of climatic variation.

In the ecological development of terrestrial biomes, which factor is most dependent on all the
others?
A) the species of colonizing animals
B) prevailing temperature
C) prevailing rainfall
D) mineral nutrient availability
E) soil structure

the species of colonizing animals

The growing season would generally be shortest in which of the following biomes?
A) savanna
B) temperate broadleaf forest
C) temperate grassland
D) tropical rain forest
E) northern coniferous forest

northern coniferous forest