Ecosystems
Where does most precipitation fall
In the oceans
The movement of offspring away from their parents is called what
Dispersal
What structure is responsible for protecting Earth from the sun's harmful UV radiation
Good ozone
Acid rain has a pH of what
Less than 5
What is the largest cause of extinction today
Habitat loss
What are the three types of symbiotic relationships
Mutualism, Commensalism, parasitism
Species introduced into a new habitat where it lacks natural predators are called
Invasive species/ non-native species
What kind of organisms fix nitrogen in the soil
Bacteria
What is the leading cause of soil erosion
Agriculture
Which element is essential for all organic compounds?
Carbon
This occurs in occurs in a formerly inhabited area that was disturbed
Secondary succession
This term describes the largest population size that can be supported by an ecosystem
Carrying capacity
What are the two most basic needs of all organisms
Matter and energy
What is the name of the process in which we return a mined region back to its original state
Reclamation
What are the three ways in which ore can be extracted from rock
Heap leaching
Flotation
Smelting
This term refers to the variety of life and its processes, including the variety of living organisms, the genetic differences among them, and the communities and ecosystems in which they occur
Biodiversity
What idea describes how two species cannot occupy the same niche in the same area for very long
Competitive exclusion principle
This describes how much useful work is extracted from one unit of energy
Energy efficiency
What are the four ways in which materials can be hazardous
Toxic
Chemically active
Corrosive
Flammable
What are the three measures of life's diversity
Species diversity
Genetic diversity
Ecosystem diversity
What type of survivorship occurs when parents produce many offspring but provide them with little or no care, so relatively few offspring survive to adulthood
Type 3
What type of species live in unstable environments where many offspring are born but die young
R-selected species
What would happen if there was no carbon dioxide in the atmosphere
Heat would escape back into space leaving Earth too cold for organisms to inhabit
What is the leading cause of air pollution
Burning of fossil fuels
What is the equation for calculating growth rate of a population
r = (b+i) - (d+e)