Sem1 Exam_CPBIO_Populations

What is the term for the number of individuals of a single species per unit area?

• age structure

• ecosystem

• growth rate

• population density

What three ways can population density be distributed across a range?

• linearly, radially, randomly

• 1. linearly, randomly, clumped 

• 1. uniformly, radially, clumped 

• uniformly, randomly, clumped

What is the term for the movement of individuals into an area?

• emigration

• migration

• immigration

• relocation

What does a population’s growth rate determine?

• the genetic diversity within a population

• the number of births and deaths in a population

• the number of individuals moving in and out of the population

• the rate at which a population increases or decreases

The area inhabited by a population is known as its __________.

• age structure

• geographic range

• growth rate

• population density

What shape characterizes a logistic growth curve?

• exponential

• linear

• S-shaped

• U-shaped

The maximum number of organisms of a particular species that can be supported by an environment is called __________.

• age structure

• carrying capacity

• demography

• limiting factor

What term is used for any factor in an environment that leads to a decrease in population growth?

• abiotic factor

• accelerating factor

• biotic factor

• limiting factor

A limiting factor that depends on population size is called a __________.

• density-dependent limiting factor

• density-independent limiting factor

• parasitic relationship

• predator-prey relationship

What is a population’s age structure?

• the average age of a population

• the distribution of ages among individuals of a population

• the number of births and deaths in a population

• the total number of individuals in a population