Biology vocabulary

What has been the greatest source of change in the biosphere?

The atmosphere contains a relatively high concentration of ozone gas called

As habitats disappear the species that live in those habitats vanish

In parts of the world with dry climates a combination of farming overgrazing and drought turned areas into deserts

Harmless plants and animals that humans transport around the world either accidently or intentionally

Humans began the practice of farming

Modern agricultural techniques were introduced such as monoculture and the use of chemical fertilizers

When a species disappeares from all or part of its range

Define biodiversity

The raising of aquatic animals for human consumption

Concentrations of a harmful substance increase in organisms at higher trophic leves in th food chain or food web

A species' population size is declining in a way that places it in danger of extinction

What was the green revolution?

Why have forests been called the "lungs of the Earth"

The term used to describe this increase in the average temperature of the biosphere is called

When certain compounds mix with water vapor in the air they form drops of nitric and sulfuric acids

Cannot be replenished by natural processes

Describe the process by which chlorofluorocarbons deplete the ozone layer

The wise managent of natural resources, including the preservation of habitats and wildlife

Speaking ecologically what is conservation? What is the role of conservation biology?

The sum total of the genetically based variety of all organisms in the biosphere

Name four natural services that ecosystems provide for the biosphere.

Large fields are planted with a sinlge variety year after year

A mixture of chemicals that occurs as a gray-brown haze in the atmophere

Give an example of biological magnification. How does it occur?

The number of different species in the biosphere

Includes the variety of habitats communities and ecological processes in the living world

Something that can regenerate if they are alive or can be replenished by biochemical cycles

A harmful material that can enter the biosphere through the land, air, or water

The sum total of all organisms living on Earth today

List three examples of environmental pollutants.

Identify two ways in which industrial development has affected ecosytems

Can lead to severe erosion as soil is exposed to heavey rains

The wearing away of surface soil by water and wind