Population Dynamics

The Scientific study of human populations is called

• immigration

• emigration

• demographic transition

• demography

The movement of individuals into an area is called

• demography

• immigration

• carrying capacity

• emigration

The number of individuals of a single species per unit area is known as

• carrying capacity

• limiting population

• population density

• logistic population

Bacteria employ a(n) __________ reproductive strategy, a characteristics determined by their small size, rapid maturation, and short life span

• unusual

• early

• rapid

• slow

A population that grows until it reaches its carrying capacity usually has the shape of an

• I

• J

• S

• M

Density-independent factors are limiting factors whose effects are

• confined to the habit of the population

• determined by the degree of competition for resources

• not influenced by population densities

• determined by the difference between birthrate and population density

For a particular species, the carrying capacity is the maximum number of individual organisms that

• the species could reach in a given time period if all the offspring survive and reproduce

• could be supported by a given environment indefinitely

• are in their post-reproductive years

• could be supported by any environment over a period of one year

When you study all the growth characteristics of a human population, you are studying its

• reproductive pattern

• exponential growth

• life-history pattern

• demography

Populations control factors whose effects increase as the size of the population increases are

• abiotic factors

• density-dependent factors

• limiting factors

• density-independent factors

Which of the following is a biotic factor in the prairie ecosystem?

• water

• sunlight

• soil

• grass