module 5.1

What are the four demographic factors that affect population size?

• Birth, immigration, pollution, and migration

• Birth, death, pollution, and emigration

• Birth, death, immigration, and emigration

• Death, immigration, emigration, and pollution

What type of growth assumes unlimited resources?

• Exponential growth

• S-shaped growth

• Logistic growth

• Cyclical growth

What does carrying capacity refer to?

• The maximum population size an environment can sustainably support

• The minimum population size an environment can support

• The average population size in an ecosystem

• The population size that leads to extinction

What does a survivorship curve represent?

• The age structure of a population

• The carrying capacity of an environment

• The proportion of individuals surviving at different age stages

• The total number of births in a population

Which type of factors intensify their effects as population density increases?

• Biotic factors

• Density-independent factors

• Density-dependent factors

• Environmental factors

What is an example of a density-independent factor?

• Food availability

• Temperature

• Predation

• Disease outbreak

What do predator-prey interactions create?

• Constant carrying capacity

• Linear population growth

• Cyclical population fluctuations

• Stable population sizes

What do life tables record?

• Survivorship curves and growth patterns

• Population density and distribution

• Age-specific birth and death rates

• Carrying capacity and resource availability

What does the logistic equation model?

• Population extinction rates

• Population decline over time

• Population growth considering resource limitations

• Population migration patterns

What shape does logistic growth produce on a graph?

• J-shaped curve

• S-shaped curve

• Linear curve

• Exponential curve