| adaptations |
An
alteration or adjustment in structure or habits, often hereditary,
by which a species or individual improves its condition in relationship
to its environment. |
| alpine
|
Living
or growing on mountains above the timberline. |
| arctic
|
Extremely
cold; frigid. |
| conservationist
|
Someone
who works to protect the environment from destruction or pollution.
|
| continent
|
One
of the principal land masses of the earth, usually regarded as
including Africa, Antarctica, Asia, Australia, Europe, North America,
and South America. |
| hemisphere
|
Either
the northern or southern half of the earth as divided by the equator
or the eastern or western half as divided by a meridian. |
| lichens
|
A
fungus that grows symbiotically with algae, resulting in a composite
organism that characteristically forms a crustlike or branching
growth on rocks or tree trunks. |
| permafrost
|
Permanently
frozen subsoil, occurring throughout the Polar Regions and locally
in perennially frigid areas. |
| polar
|
Relating
to, connected with, or located near the North Pole or South Pole
. |
| shelter
|
Something
that provides cover or protection, as from the weather. |
| terrain
|
An
area of land. |
| treacherous |
Marked
by unforeseen hazards; dangerous or deceptive. |
| tundra
|
A
treeless area between the icecap and the tree line of Arctic regions,
having a permanently frozen subsoil and supporting low-growing
vegetation such as lichens, mosses, and stunted shrubs. |
| tussocks
|
A
clump or tuft, as of growing grass. |
| zone
|
An
area or a region distinguished from adjacent parts by a distinctive
feature or characteristic. |
