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WorksheetsCompetitive Exclusion Principle
Total questions: 15
Worksheet time: 15mins
The ecological niches of three bird species are shown in the diagram. What is the advantage of each bird species having a different niche?
As more birds feed higher in the tree, available energy increases.
More abiotic resources are available for each bird.
Predators are less likely to feed on birds in a variety of locations.
There is less competition for food.
The relationship that exists between two organisms when they attempt to obtain the same resource.
Competition
Disturbance
Mimicry
Predation
How does niche partitioning help in reducing competition?
By increasing the overall population size of competing species.
By promoting cooperation and sharing of resources among different species.
By allowing different species to specialize in different food sources or habitats, reducing direct competition for resources.
By creating barriers that prevent different species from interacting with each other.
What is the Competitive Exclusion Principle?
Two species can coexist indefinitely
One species will always eliminate the other when competing for the same resources
Species always share resources equally
Species never compete for resources
Who first identified the Competitive Exclusion Principle?
E. O. Wilson
G. F. Gause
Robert MacArthur
Charles Darwin
What did G. F. Gause use to demonstrate the Competitive Exclusion Principle?
Two species of sharks
Two species of finches
Two species of protists
Two species of warblers
What is the main concept behind the Competitive Exclusion Principle?
Two species can coexist indefinitely in the same niche
One species will outcompete the other for the same resources
Species always share resources equally
Species never compete for resources
Which scientist is credited with formulating the Competitive Exclusion Principle?
E. O. Wilson
G. F. Gause
Robert MacArthur
Charles Darwin
In an experiment demonstrating the Competitive Exclusion Principle, which organisms did G. F. Gause use?
Two species of sharks
Two species of finches
Two species of protists
Two species of warblers
How does the Competitive Exclusion Principle affect biodiversity in an ecosystem?
It increases biodiversity by allowing more species to coexist
It decreases biodiversity by eliminating competing species
It has no effect on biodiversity
It promotes biodiversity by encouraging species to share resources
What is a real-world example of the Competitive Exclusion Principle?
Two bird species sharing the same tree
Two fish species competing for the same food source
Two plant species growing in different soil types
Two insect species pollinating the same flower
Which of the following best describes niche partitioning as a response to the Competitive Exclusion Principle?
Species evolve to use different resources or habitats
Species become extinct
Species increase their population size
Species migrate to new areas
What role does resource availability play in the Competitive Exclusion Principle?
It allows species to coexist without competition
It leads to the dominance of one species over another
It has no impact on species competition
It encourages species to share resources equally
How can the Competitive Exclusion Principle be experimentally tested?
By observing species in their natural habitat
By introducing two species into a controlled environment with limited resources
By studying fossil records
By analyzing genetic differences between species
What is the outcome when two species compete for the exact same niche according to the Competitive Exclusion Principle?
Both species will thrive
One species will adapt to a new niche
One species will outcompete and exclude the other
Both species will share the niche equally
