Harming the Earth
This is a gray-brown haze formed by a mixture of chemicals in the air.
What is Smog
This organism does not produce its own food and relies on producers
What is a heterotroph
This is where you find the permafrost layer
Tundra
Refers to the number of different species in the biosphere
Species Diversity
Determines whether the population increases, decreases, or stays the same
Population Growth Rate
This is the removal of soil by water or wind
Erosion
This is an animal whose diet contains a variety of plants and meats
What are omnivores
There is rain year round and it contains more species than all the other biomes combined
Tropical Rain Forests
Refers to the variety of habitats, communities & ecological processes in the biosphere
Ecosystem Diversity
Refers to the number of individuals per unit area
Population Density
This is the destruction of trees & forests
What is Deforestation
These organisms break down organic matter
What are decomposers
This biome receives less than 25 cms of precipitation annually
Deserts
Genetic diversity
Refers to the area inhabited by a population
Geographic Range
This contains nitric and sulfuric acids
What is Acid Rain
Animals that consume dead or decaying organic matter
Scavengers
This biome, also called Taiga has long, cold winters, mild & short summers, and nutrient poor soils.
What is a Boreal Forest
Process that splits ecosystems into pieces
Habitat fragmentation
To understand populations & predict how they will change we use
Age-structure diagrams
This is an increasing concentration of a harmful substance in organisms at higher trophic levels in a food chain or food web
What is Biological Magnification
This is a feeding relationship in which 1 organism benefits and the other is neither helped nor harmed.
What is Commensalism
This biome is found in the midwest & central US & has rich soil to grow crops
What are Temperate Grasslands
What is an area where significant numbers of habitats & species are in immediate danger of extinction.
What is an Ecological Hot Spot
The largest number of individuals of a particular species that a particular environment can support
Carrying Capacity