Competitive Exclusion Principle

No two species can occupy the same niche

• Competitive Exclusion Principle 

• Limiting Exclusion Theory

• Competitive Limiting Principle

• Limiting Competitive Theory 

This outcome of competition often leads to the extinction of one of the competing species

• Character Displacement

• Competitive Exclusion

• Resource Partitioning 

• Brood Parasitism

Tags

NGSS.MS-LS2-4

Two different species fighting for the same resources often enough will lead to what outcome?

• Interspecific mating

• Intraspecific competition

• competitive exclusion

• predation

Tags

NGSS.MS-LS2-1

When taken to a new habitat, non-native plants often threaten native plants of the new habitat.  Why do they do this?

• Non-native plants are able to mutate rapidly

• Non-native  plants cause native animals to relocate

• Non-native plants are able to be used for medicine

• Non-native plants compete with native plants for resources

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What effect will an invasive species have on the carrying capacity of an ecosystem?

• The carrying capacity will increase

• The carrying capacity for everyone will decrease

• The carrying capacity will only decrease for those in competition for same resource

• The carrying capacity for all animals will stay the same

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-5

No two species can occupy the same niche at the same time.

• Competition

• Competitive Exclusion Principle

• Resource Partitioning

• Predation

Answer explanation

The Competitive Exclusion Principle states that no two species can occupy the same niche at the same time, highlighting the correct choice.

two species cannot coexist in the same ecological niche for very long without one becoming extinct or being driven out because of competition for limited resources

• predation

• competitive exclusion principle

• population density

• biodiversity

Answer explanation

The competitive exclusion principle states that two species cannot coexist in the same ecological niche for long without one becoming extinct or being driven out due to competition for limited resources.

When put together, one organism outcompetes the other for resources.  This is an example of:

• competitive exclusion principle

• speciation

• biological niche

• evolution

Answer explanation

When one organism outcompetes another for resources, it is an example of the competitive exclusion principle.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What happens when two species have overlapping niches?

• The two species will learn how to cooperate with each other.

• Increase in population size for both species.

• Competition for resources and potential decrease in population size or loss of one species in that ecosystem.

• There is no effect or impact on the population size or survival of either species.

Answer explanation

When two species have overlapping niches, they compete for resources, potentially leading to a decrease in population size or loss of one species in the ecosystem.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

How does competition affect species diversity?

• It increases species diversity.

• It promotes species diversity.

• It has no effect on species diversity.

• It reduces species diversity.

Answer explanation

Competition reduces species diversity by favoring dominant species over others.

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-5