Environmental Science Ch. 7 Review - Deserts & Tundras

Cactus spines are really modified

The rainshadow effect causes

All of the following result from overgrazing in semiarid regions except:

Caribou in the tundra feed mostly on

The spines of desert plants

The limiting  factor in the tundra is

the main difference between deserts and the tundra is

Desertification is caused by

The common characteristic of all deserts is

Plants that store water in their tissues are called

One way rainshadow effect leads to natural desert formation in Western US is

Why is the mesquite tree less dependent on rainfall than a cactus?

Leaching

Compared to the desert fennec, you might expect the Artic fox to have

Migratory birds in the tundra feed mostly on

An important part of  topsoil is

Tundra ecosystems are considered to be fragile because of

Air trapped in the fur of the caribou's coat functions as

Why does the desert experience such drastic differences in temperature from day to night time?

Adaptations to desert life do NOTinclude

The Trans-Alaska Pipeline was built above ground to prevent

Which of the following is NOT an adaptation to desert life

Permafrost remains throughout the summer because it is insulated by

The limiting factor of a desert biome is its

Vegetation determines the kinds of animals that live in an area because plants

Desert soils tend to be poor in topsoil because