Show:
The Biosphere
Flow of Energy
Population Dynamics
The Human Population
Biomes
100
The study of all the interrelationships between organisms and their environment
What is ecology?
100
Consumes fragments of dead materials.
What is detritivore?
100
The pattern of spacing of a population withing an area.
What is dispersion?
100
The shift from high birth rate and low death rates to low birth and high death rates.
What is demographic transition?
100
A stable, mature community that results when there is little change in the number of species.
What is climax community?
200
The living factors in an organism's environment.
What is Biotic factor?
200
Each step in a food chain or food web is a _____.
What is trophic level?
200
Factor that doesn't depend on the number of population members per unit area.
What is density-independent?
200
Pre-reproductive, reproductive, and post-reproductive are all part of _________.
What is age structure?
200
The type of succession that occurs on places where no soil exists.
What is primary succession?
300
All of the organisms in a relationship that benefit.
What is mutualism?
300
Arrows in a food chain go away from the organism _____.
What is providing the energy?
300
The number of individuals moving away from a population.
What is emigration?
300
The birth rate equals the death rate.
What is zero population growth?
300
Biome where a thick layer of permafrost is existent year round.
What is tundra?
400
The act of one organism consuming another for food.
What is predation?
400
The total mass of living matter at each trophic level.
What is biomass?
400
The initial phase of slow growth due to the number of organisms available to reproduce.
What is lag phase?
400
_____________countries grow faster because it's not a big expense for them.
What is non-industrialized?
400
Matter is passed through the environment by the _________ cycle.
What is biogeochemical?
500
The role or position an organism has in it's environment.
What is niche?
500
______make up the first trophic level.
What is autotrophs?
500
If a population had limiting factors, the type of graph r-strategists would create.
What is logistic growth.
500
The study of human population size, density, distribution, movement, and birth and death rates.
What is demography?
500
The process where some soil bacteria convert the fixed nitrogen back into nitrogen.
What is denitrification?