- Precipitation less than 10 inches
- Average temperature is between -20 and -30
- Covers 1/5 of the Earths land surface.
- Mostly North Pole
- Carnivore-Polar Bears
- Omnivore-Grizzly Bear
- Vascular Plant-Peat Moss
- No vascular plant-Liverwarts
A population is a summation of all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding.
Population divided by the total land area as appropriate.
The number or quantity of people or things that can be sustained in an environment.
Growth whose rate becomes ever more rapid in proportion to the growing total number or size.
Exponential growth can cause food shortages and an unbalanced ecosystem.
Variable that isn't changed by other variable.
Responds to the independent variable.
States that the frequencies of alleles in a population do not change unless evolutionary forces act on a population.
Hold plants into the ground
Moves water and nutrients down
Moves sugars and nutrients down
The seed bearing part of a plant, consisting of reproductive organs.
A pore, found in the epidermis of leaves, stems and other organs that is used to control gas exchange.
Contains reproductive structures.
The tissue containing undifferentiated cells.
an embryonic plant enclosed in a protective outer covering called the seed coat, usually with some stored food.
Asticcacaulis excentricus is found in the wetlands of the tundra. They can live in temperatures from 4 degrees to 28 degrees Celsius. Their optimum living temperature is 15 to 20 degrees Celsius. It is rod shaped.
Polar Bear- (Ursas maritimus) are found all over the tundra. They have fur for the cold weather. They sexually reproduce. They are eukaryotic. There is an estimated 25000 polar bears left, which makes them endangered. They are in jeopardy of going extinct because of global warming. They are heterotrophic.
Musk Ox-(Ovibos moschatus) are found all over the tundra. They have fur for the cold weather. They sexually reproduce. They are eukaryotic. There are over 100000 left in the wild and are not endangered. They are heterotrophic.
Shield lichen is the common name of Parmelia sulcata.
This lichen is known to live on trees, and sometimes rocks, in the tundra. They are more abundant in the short summertime of the tundra. They reproduce asexually. They are heterotophs. They are eukaryotic.