APES Unit 3

Front

What characterizes Stage 3 of the Demographic Transition Model (DTM)?

Back

Both the birth rate and death rate are decreasing.

Front

What are Density-Independent factors?

Back

Factors that affect all populations similarly regardless of population size, such as natural disasters and climate changes.

Front

What characterizes Stage 1 of the Demographic Transition Model (DTM)?

Back

High birth and death rates.

Front

What is the carrying capacity?

Back

The maximum population size that an environment can sustain, e.g., 1.6 million for a sheep population.

Front

What are Density-Dependent factors?

Back

Factors that affect a population depending on its size, including food availability, predation, parasitism, and disease.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Front

Define carrying capacity.

Back

The maximum number of individuals of a species that an environment can support sustainably.

Tags

NGSS.MS-LS2-4

Front

What is the significance of the Demographic Transition Model (DTM)?

Back

It illustrates the transition of a country from high birth and death rates to low birth and death rates as it develops.

Tags

NGSS.HS-ETS1-1

Front

What happens to birth and death rates in Stage 2 of the DTM?

Back

Death rates decline significantly while birth rates remain high.

Front

What is an example of a Density-Independent factor?

Back

Natural disasters like earthquakes or floods.

Tags

NGSS.MS-ESS3-2

Front

What is the relationship between population size and Density-Dependent factors?

Back

Density-Dependent factors become more intense as population size increases.