Population Growth

__________ _________ is the change in size of a group of organisms of the same species over time.

(a)  

Which factors are used to calculate population growth? Check all that apply.

• immigration

• death rate

• human activity

• birth rate

• emigration

The population growth that occurs when a population is growing at a constant rate.

• Logistic growth

• Exponential growth

The population growth that occurs as population growth slows or stops, following a period of exponential growth.

• logistic growth

• exponential growth

Determine whether the data in the table below represent exponential or logistic growth.

• Exponential Growth

• Logistic Growth

Determine whether the data in the table below represent exponential or logistic growth.

• Exponential growth

• Logistic growth

What is carrying capacity?

• the maximum number of organisms that can live in a population

• the ability of the environment to provide resources for a growing population

• the maximum number of organisms an environment can support for a long time

• the maximum number of species that can live in an ecosystem.

What two factors does carrying capacity compare?

• population size and resource use

• population growth and resource availability

• resource use and time

• population size and time

If a population exceeds its carrying capacity, resources become exhausted and the population crashes.

• True

• False

What happens to a population if its growth exceeds its carrying capacity?

• It declines slowly.

• It crashes.

• It stops growing.

• It starts to grow logistically.

• It starts to grow exponentially.