Population Dynamics: Growth, Density, Distribution

What causes competition to occur in an environment?

• Good conditions make resources plentiful.

• Organisms struggle for a limited resource.

• Members of a population have different roles.

• A population falls below the environment’s carrying capacity.

Without other changes to a population, which of the following will cause a population to increase in size?

• The birth rate equals the death rate.

• The birth rate is less than the death rate.

• The birth rate is greater than the death rate.

• The birth rate and the death rate both equal 0.

Populations of organisms are dynamic.

• True
• False

A population is 

• a group of communities that exist in different places
• a group of organisms of one species that lives in the same area at the same time
• a group of people that populate one place at the same time on different planets

When you leave a population

• emigration

• mitigation

• immigration

• migration

When individuals join a population

• Aliens

• migration

• Immigration

• Emigration

How can a populaiton grow?

• Emigration and death
• Immigration and death
• Immigration and birth
• Emigration and birth

Population density is affect by the movement of people into a population. This is called

• Immigration

• emigration

• density-dependent

• density-independent

Population density is affect by the movement of people out of a population. This is called

• Immigration

• emigration

• density-dependent

• density-independent

What effect will an increase in natality have on a population?

• increase the population

• decreased population

• won't effect the population

• natality is a made up word