7SCI-Q3-T12-L 12.2 - Changing Populations

What does the birthrate contribute to in a population?

• Decrease in population size

• Increase in population size

• Migration

• Extinction

What is a possible outcome when the death rate exceeds the birthrate in a population?

• Population size decrease

• Exponential growth

• Population size increase

• Immigration

What term describes the complete disappearance of a species from Earth?

• Endangered species

• Extinction

• Threatened species

• Emigration

Which term refers to species that are at risk of extinction?

• Migration

• Endangered species

• Population movement

• Exponential growth

What is the term for the movement of people from another country to this country?

• Extinction

• Endangered species

• Immigration

• Emigration

What factor contributes to an increase in human population size?

• Increased death rate

• Improved sanitation

• Lack of resources

• Decreases in medical care

What can lead to decreases in human population size?

• Migration

• Lack of medical care

• Improved food supply

• Immigration

What is a type of population movement?

• Endangered species

• Population size decrease

• From abroad

• Extinction

What is an example of exponential growth?

• Stable population size

• Rapid increase in population size

• Rapid decrease in population size

• Slow increase in population size

What term describes the movement of people within the same country?

• Emigration

• Immigration

• Migration

• Extinction