Show:
Biomes
abiotic factors
Ecosystems
Aquatic Ecosystems
How Ecosystems Change
100
average weather pattern in an area
What is climate?
100
temperature and precipitation
What are factors that affect land ecosystems
100
the most biologically diverse of all biomes
What is the tropical rain forests?
100
regions that are wet for all or most of year (biological supermarkets)
What are wetlands?
100
lichens
What are pioneer species?
200
large areas with similar climates and ecosystems
What are biomes?
200
The source of energy for most life on Earth
What is sunlight?
200
temperatures range from below freezing in winter to 30 C or more in summer
What are temperate deciduous forests?
200
human activity and fertilizer runoff from farms and lawns
What is water pollution?
200
decaying plants
What is organic material?
300
cold, dry, treeless region
What is a tundra?
300
The amount of dissolved salts in water.
What is Salinity?
300
Precipitation less than 25 cm per year
What is the desert?
300
normal, gradual changes, that occur in the types of species that live in an area?
What is ecological succession?
300
begins without soil
What is primary succession?
400
cold forest of mostly evergreen trees
What is a Taiga?
400
Determines which kind of organisms can live in an environment.
What are abiotic factors?
400
contains mosses, grasses, small shrubs, lichens and less than 25 cm of precipitation per year
What is the tundra?
400
wetlands, lakes, ponds, rivers, streams
What are freshwater ecosystems?
400
complex and stable over time.
What is a climax community?
500
region with four seasons, mostly trees that lose their leaves in autumn
What are temperate deciduous forests?
500
must be adapted to dramatic changes in temperature, moisture, and salinity and must be able to withstand the force of wave action.
What are species that live in the intertidal zone?
500
temperate or tropical 25 cm-75 cm of precipitation per year and dry season
What are grasslands?
500
Water temperature, the amount of sunlight present, and the amounts of dissolved oxygen and salt in the water.
What are abiotic factors that determines the organisms of aquatic ecosystems?
500
takes place on an abandoned, unpaved country road.
What is secondary succession?