Population Size and Structure Answers

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3

Which two factors can both cause a population to increase?

A
birth rate and emigration
B
birth rate and immigration
C
death rate and immigration
D
death rate and emigration
4

Which type of limiting factor affects a large population more than it affects a small population?

A
density dependent
B
density independent
C
population dependent
D
population independent
6

What will most likely increase if there is a high death rate?

A
immigration
B
emigration
C
birth rate
D
population
8

Which best describes the following impacts: water storage, clean energy, and flood prevention?

A
positive impact of a density-dependent limiting factor
B
positive impact of a hurricane
C
positive impact of beavers in an ecosystem
D
positive impacts of dams on society

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