Density Independent

Many fish die due to a drastic change in water temperature.

• Density-Dependent

• Density-Independent

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

An extensive drought in the plains threatens wildebeest, giraffe, zebra, and springbok populations.

• Density-Dependent

• Density-Independent

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following is a density-independent limiting factor?

• natural disaster

• predation

• disease

• parasitism

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-2

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

• Predation

• Disease

• Natural disaster

• Competition

Density-independent factors are typically associated with which of the following?

• Biotic factors

• Abiotic factors

• Symbiotic relationships

• Parasitism

Which of the following scenarios best illustrates a density-independent effect on a population?

• A viral outbreak in a crowded city

• A forest fire affecting a large area

• Increased competition for food

• Predator-prey dynamics

Tags

NGSS.MS-ESS3-2

What is the primary difference between density-dependent and density-independent factors?

• Density-dependent factors are abiotic, while density-independent factors are biotic.

• Density-dependent factors affect populations regardless of size, while density-independent factors depend on population size.

• Density-independent factors affect populations regardless of size, while density-dependent factors depend on population size.

• Density-independent factors are always beneficial, while density-dependent factors are harmful.

Which of the following is NOT a density-independent factor?

• Flood

• Temperature

• Food availability

• Hurricane

How do density-independent factors typically affect a population?

• They cause population size to fluctuate based on resource availability.

• They cause sudden and unpredictable changes in population size.

• They lead to gradual changes in population size over time.

• They stabilize population size by balancing birth and death rates.

In an experiment, a scientist observes that a population of insects decreases after a sudden frost. This is an example of:

• Density-dependent regulation

• Density-independent regulation

• Mutualism

• Commensalism

Tags

NGSS.MS-LS2-4