Population, births, deaths, immigration, emigration, etc.. etc..

Factors that affect population size:

DECREASE: Number of ___________ & ____________

Choose all that applies.

• Birth

• Death

• Immigration

• Emigration

Factors that affect population size:

INCREASE: Number of ___________ & ____________

(Choose 2 answers)

• Birth

• Death

• Immigration

• Emigration

What conditions may occur when a population is in exponential growth? Check all the correct answers.

• birth rate is greater than death rate

• birth rate is less than death rate

• immigration rate is greater than emigration rate

• immigration rate is less than emigration rate

What pattern of population distribution does this school of fish represent?

• Random
• Uniform
• Clumped
• Knotted

What factors do field scientists need to track to accurately account for population size?

• Births

• Deaths

• Emigration

• Immigration

• All of the above

The Bahamas was hit by a class 5 hurricane. It affected the human along with other population's resources. This Hurricane would be consider what type of limiting factor

• density dependent

• parasitism

• immigration

• density independent

Last year in a habitat of elephants, there were more births than normal and there was more immigration of elephants into the area. How does this affect population size and density?

• Both population size and density increase

• Both population size and density decrease

• The population size and density remain the same

• Population size decreases but the density increases

Factors that control population growth such as competition, predation, and parasitism are known as...

• density dependent factors

• density independent factors

• crowding and stress

• logistic growth

A massive flood displaces a population of deer from their habitat. The flood is an example of

• a density-dependent limiting factor.

• carrying capacity.

• a density-independent limiting factor.

• survivorship.

At what point would you expect to see the environment reach its carrying capacity?

• A

• B

• C

• D