Population Dynamics

Density-independent factors are limiting factors whose effects are

• confined to the habitat of the population

• determined by the degree of competition for resources

• not influenced by population densities

• determined by the difference between birthrate and population density

The struggle between organisms to survive in a habitat with limited resources is called

• competition.

• predation.

• symbiosis.

• parasitism.

Tags

NGSS.MS-LS2-1

These processes cause populations to grow...

• birth

• emigration

• death

• immigration

These processes cause populations to get smaller...

• death

• immigration

• emigration

• birth

When a harbor seal joins a population...

• emigration

• immigration

Choose the environmental factors that influence population size...

• Competition

• Changes in the Environment

• Resource Availability

• Cooperation

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The maximum number of individuals of one species that an environment can support is called...

• limiting factor

• carrying capacity

• competition

Tags

NGSS.MS-LS2-4

Choose examples of changes to the environment that affect population size...

• forest fire

• drought

• harsh weather

• new competition

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

This keeps a population’s size below its full potential...

• limiting factor

• carrying capacity

Choose the ways that organism interactions control population size...

• Competition

• Changes in the Environment

• Resource Availability

• Cooperation

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4