ES Quiz - How Populations Change in Size

A ______________________ is the set of individuals within a species living in the same place at the same time.

• organism

• population

• ecosystem

• habitat

What are two factors which increase population size?

• Birth Rate, Immigration

• Death Rate, Immigration

• Birth Rate, Emigration

• Death Rate, Emigration

What do you call the population size represented by the dashed-Line?

• Carrying Capacity

• Limiting Factor

• Ecosystem

• Death Rate

What are the number of organisms in a population which die each year?

• Death Rate

• Birth Rate

• Immigration

• Emigration

What term is defined as when organisms move into and join a new population?

• Immigration

• Birth Rate

• Death Rate

• Emigration

What term is defined as when organisms leave a population and move away?

• Immigration

• Birth rate

• Emigration

• Death Rate

Which term can be defined as the population size where birth rates and death rates are equal or as the maximum population of a particular species that its ecosystem can support indefinitely?

• Ecology

• Limiting Factor

• Population equalizer

• Carrying capacity

What are two factors which decrease population size?

• Birth Rate, Immigration

• Death Rate, Immigration

• Birth Rate, Emigration

• Death Rate, Emigration

In this graph, from 1901-1961 how would you describe the Raven population?

• Below the carrying capacity

• Above the carrying capacity

• At the carrying capacity

If a particular species has access to unlimited resources what would you expect to happen to its population size?

• Decrease

• Increase

• Stay the Same