Ecosystem Study Guide
Wetlands are made of:
1. water
2. hydric Soils
3. hydrophytic Plants
4. bacteria and animals
Forests are made of:
1. location
2. soil
3. plants
4. animals
Deserts are made of:
1. high evaporation
2. little precipitation
3. high day temperatures
4. wind
Make a food web with the following: hawk, cacti, insects, lizard, rodent, snake, fox, sage bush, tarantula, and a scorpion.
******Wetlands are important because they help filter silt and pollutants. They also prevent erosion and give birds rest during migration.
Cold deserts:
45-90 degrees
Snowfall in the winter
May freeze at one point in the year
Hot deserts:
120 degrees or higher
rainfall in the winter
Never freezes
BOTH hot and cold deserts:
Extreme temperatures
Little precipitation
45-90 degrees
Snowfall in the winter
May freeze at one point in the year
Hot deserts:
120 degrees or higher
rainfall in the winter
Never freezes
BOTH hot and cold deserts:
Extreme temperatures
Little precipitation
******Tree rings show tree's age; years of growth affected by (precipitation, competition, disease, and location).