POPULATION ECOLOGY

In ecology, a population is best defined as:

• A group of different species living in one area

• A group of organisms and their physical environment

• All members of a single species in a given area

• All living and nonliving things on Earth

Which of the following is NOT considered a characteristic of populations?

• Age structure

• Population density

• Genetic variation

• Sex ratio

Tags

NGSS.MS-LS4-4

Population density refers to:

• The total number of organisms in a population

• The number of organisms per unit area

• The number of males vs. females

• The amount of resources available

Tags

NGSS.MS-LS2-4

A clumped distribution pattern in a population might occur when:

• Individuals are territorial

• Resources are evenly spread out

• Resources are concentrated in specific areas

• The species is solitary

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Which of the following population characteristics directly influences reproductive potential?

• Population size

• Sex ratio

• Distribution

• Density

Tags

NGSS.MS-LS4-4

Which term refers to the maximum number of individuals an environment can support over time?

• Logistic limit

• Reproductive rate

• Carrying capacity

• Density threshold

A density-dependent factor that limits population growth is:

• Drought

• Disease

• Temperature

• Natural disasters

Tags

NGSS.MS-LS2-4

Which of the following is an example of a density-independent factor?

• Food competition

• Predation

• Flooding

• Parasitism

Tags

NGSS.MS-ESS3-2

When a population grows rapidly with no limiting factors, it exhibits:

• Logistic growth

• Decline phase

• Exponential growth

• Stationary phase

The J-curve represents which type of growth?

• Logistic

• Linear

• Exponential

• Stable

Tags

NGSS.MS-LS1-5