Biogeography of the Earth

1. Desert plants have adapted to drought by having

deep tap roots
extensive near-surface root systems
thick fleshy leaves
all the above

2. "Energy cannot be created or destroyed" is a statement of the 

First Law of Thermodynamics
Second Law of Thermodynamics
The Adiabatic Law
none of the above

3. Plant transpiration

depends on the amount of water held in the soil
cools the plant
depends on the humidity of the air
All of the above

4. A ______ is the natural environment in which an organism lives.

habitat
niche
ecotone
formation class

5. The function of a life-form within a community is called 

a niche
an ecotone
a habitat
none of the above

6. The process of converting solar energy, water and carbon dioxide into carbohydrates and oxygen is called

photosynthesis
respiration
transpiration
none of the above

7. Climate and topographic barriers are more of an impediment to ___ than ____.

plants; animals
animals; plants

8.  Deserts generally have ___ potential evapotranspiration and ___ moisture index.

high; high
high; low
low; low
low; high

9. Which biome can be thought of as a "global-scale" ecotone?

Tundra
Forest
Grassland
Savanna

10.  The multi-layered canpopy of the rain forest creates a(n) ____ forest structure.

open
closed

Score =
Correct answers:

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