Human Impact and Population Test Review

Front

What type of growth is shown on this graph?

Back

Logistic growth is characterized by an initial period of exponential growth followed by a slowdown as the population reaches its carrying capacity.

Front

One of the factors that affect population size: INCREASE: Number of ___________

Back

Births increase the population size.

Front

One of the factors that affect population size: DECREASE: Number of ___________

Back

Emigration decreases the population size.

Front

If the number of births is greater than the number of deaths in a population, what will happen to the growth of the population?

Back

The population will increase.

Front

If a population is growing exponentially, it has met its carrying capacity. True or False?

Back

False. Exponential growth occurs before a population reaches its carrying capacity.

Front

What is carrying capacity?

Back

Carrying capacity is the maximum number of individuals of a species that an environment can sustainably support.

Front

Define emigration.

Back

Emigration is the act of leaving one's resident country to live elsewhere.

Front

Define immigration.

Back

Immigration is the act of coming to live permanently in a foreign country.

Front

What is the difference between density-dependent and density-independent factors?

Back

Density-dependent factors are influenced by population density (e.g., competition, predation), while density-independent factors affect population regardless of density (e.g., natural disasters).

Front

What is the significance of the logistic growth model?

Back

The logistic growth model illustrates how populations grow rapidly at first and then slow down as they approach the carrying capacity.