Population Dynamics

The _________________ is maximum number of individuals of one species that the environment can support. 

• emigration
• limiting factor
• carrying capacity
• immigration

A population increases when_________________

• individuals die
• individuals are born
• individuals emigrate

A population gets smaller by____________

• immigration and death
• immigration and birth
• emigration and birth
• emigration and death

A part of the environment that keeps a population's size at a level below its full potential is called a _________________ .

• cooperation
• limiting factor
• competition
• carrying capacity

Limiting factors can be biotic or abiotic factors 

• true
• false

When two or more individuals or populations try to use the same limited resource (e.g. food, water, shelter, sunlight) it is called_________________

• cooperation
• symbiosis
• competition
• limiting factor

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.

What is one way that cooperation helps lions to survive?

• They hunt in a group to increase their likelihood of catching prey.

• They all have a tan color that helps them blend into their environment.

• They eat a variety of prey, including zebras, buffaloes, and wildebeest.

• They live in prides of five to ten adult females and their young, and one or two adult males.

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.

Which of the following is an example of an abiotic limiting factor on population size?

• water availability

• Availability of food

• disease

• predation