Niches Reduction Competition

The competitive exclusion principle...

• is a theory that has been disproven by recent scientific research.

• only applies to plants and not animals.

• states that two species competing for the same limited resources cannot coexist in the same ecological niche for an extended period of time.

• states that two species can coexist in the same ecological niche for an extended period of time.

What term describes the evolutionary adaptation where different species evolve distinct traits to utilise the same resource in different ways, thereby reducing competition?

• competitive exclusion

• niche specialisation

• resource partitioning

• ecological divergence

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What is an ecological niche?

• The number of individuals in a species

• The role and position of a species within its environment

• The process of evolution

• The physical location where a species lives

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What impact does interspecies competition have on the biodiversity of an ecosystem?

• It can lead to increased biodiversity due to the variety of adaptations.

• Interspecies competition generally has no significant impact on biodiversity.

• It can decrease biodiversity by eliminating species unable to compete effectively.

• It enhances the population size of all competing species.

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An example of resource partitioning is

• the uniform tree species in a monoculture forest

• the migration patterns of birds

• various species of insects feeding on different parts of the same plant

• the spread of invasive species such as the cane toad

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Which elements are crucial for defining an organism's ecological niche?

• Geographical location, climate conditions, and human influence.

• Biological interactions, availability of resources, and environmental factors.

• Legislative policies, economic practices, and cultural beliefs.

• Technological advancements, energy consumption patterns, and waste management practices.

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Describe the relationship between competitive exclusion and species diversity.

• Competitive exclusion has no effect on species diversity.

• Competitive exclusion can lead to an increase in species diversity.

• Competitive exclusion only affects certain species, not overall diversity.

• Competitive exclusion can lead to a decrease in species diversity.

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How do organisms adapt to reduce competition within their ecological niche?

• By evolving different feeding habits, occupying different niches, or developing specialised structures or behaviours.

• By forming alliances with other organisms to share resources.

• By competing more aggressively with other organisms in their niche.

• By migrating to a different habitat to avoid competition within their niche.

Understanding competitive exclusion and resource partitioning is important in ecological studies because it helps us understand how different species coexist in an ecosystem.

• True

• False

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The results of this competitive exclusion experiment show that

• P. aurelia outcompeted P. caudatum

• P. caudatum outcompeted P. aurelia

• P. aurelia and P. caudatum were able to coexist indefinitely

• P. aurelia and P. caudatum used up all the resources and died out

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