Community Ecology
Terrestrial Biomes
Aquatic Ecosystems
Population Dynamics
Human Population
100
A biotic or abiotic factor that restricts the numbers of organisms in an ecosystem.
Limiting Factor
100
The average weather conditions affecting a biome is
Climate
100
Material that is deposited by water, wind, or glaciers is called ____.
Sediment
100
The pattern in which a population is spaced within an area is called ____.
Dispersion
100
What factors change in a demographic transition?
Birth Rates and Death Rates
200
One community replacing another as a result of changing abiotic and biotic factors.
Ecological Succession
200
A ____ is an area where the annual rate of evaporation exceeds the rate of precipitation.
Desert
200
Low levels of sunlight and oxygen characterize which lake zone?
Profundal
200
A ____ is any environmental factor that depends on population numbers.
Density-dependent factor
200
What term refers to the number of males and females in various reproductive age groups?
Age Structure
300
Which statement is true based on this picture?
Steelhead cannot tolerate temperature above or below a certain limit.
300
What does this picture demonstrate?
Increased altitude or latitude causes a temperature decrease.
300
Look at the various zones in this ocean ecosystem. Of the zones shown here, which is able to support autotrophic producers?
Photic
300
The term used to describe the number of individuals moving into a population is ____.
Immigration
300
Which statement is true based on this graph?
Exponential growth began around the time of the industrial revolution.
400
The first organisms to appear during ecological succession.
Pioneer Species
400
Warm temperatures and large amounts of rainfall characterize what type of biome?
Tropical Rainforest
400
What are two features of coral reefs?
Prevent shore erosion and live symbiotically with algae
400
What does the s-shaped line in this graph indicate?
Carrying capacity has been reached.
400
In recent years, the human population growth rate has ____
Remained Unchanged
500
What is a climax community?
A stable community with little change in species numbers.
500
How is a boreal forest different from tundra?
The ground remains warmer in boreal forests.
500
What is the difference between oligotrophic and eutrophic lakes?
Oligotrophic lakes are low in nutrients
500
What happens when a population nears carrying capacity?
Resources become limited
500
What could be a possible limiting factor preventing exponential growth in a developed country?
population exceeds access to health care