Ecological Relationships Quiz

What is a habitat in the context of an ecosystem?

• The interactions between different organisms

• The set of adaptations a species has

• The actual area where an organism lives, including all of its abiotic and biotic resources

• A type of relationship between predator and prey

What does the term 'niche' refer to in ecology?

• The role of a predator in controlling prey population

• The physical environment to which an organism has adapted

• All of the things an organism needs and does within its habitat

• The process by which a species becomes extinct

What is the primary function of keystone species in an ecosystem?

• To increase biodiversity by introducing new species

• To primarily serve as prey for other animals

• To hold the ecosystem together, critical for the survival of other species

• To migrate between ecosystems, spreading nutrients

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Why do organisms interact within an environment?

• To eliminate competition for resources

• Because there are unlimited resources

• To form symbiotic relationships only

• Due to limited resources to be used

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What is competition in an ecological context?

• A mutual benefit between two species

• A relationship where two or more organisms fight for limited resources

• A symbiotic relationship where both organisms benefit

• A predator-prey interaction

Which type of competition occurs between different species?

• Intraspecific competition

• Interspecific competition

• Predation

• Mutualism

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What does the Competitive Exclusion Principle state?

• Two species can coexist in the same niche indefinitely

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

• Species must cooperate to share a niche

• Larger species will always dominate a niche

What is an example of symbiosis?

• A lion hunting a zebra

• Bull elk fighting over a herd of cows

• Two species competing for water

• A bee pollinating a flower

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Which statement best describes parasitism?

• Both organisms benefit equally from the relationship

• The parasite benefits while the host is harmed

• The host benefits while the parasite is harmed

• Both organisms are harmed

What is commensalism in ecological relationships?

• A relationship where both organisms are harmed

• A relationship where one organism benefits and the other is unaffected

• A relationship where one organism is harmed and the other benefits

• A relationship where both organisms benefit