Ecosystem Relationships Quiz

What are the three types of relationships found in almost every ecosystem?

• Mutualism, commensalism, and parasitism

• Predator-prey, mutualism, and commensalism

• Intraspecific, interspecific, and symbiosis

• Competition, predator-prey, and symbiosis

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What is intraspecific competition?

• Competition for food and water

• Competition for sunlight and nutrients

• Competition within the same species

• Competition between different species

Which of the following is an example of interspecific competition?

• Bears and wolves competing for the same food

• Owls competing for the same rats

• Zebras competing for a female mate

• Pine trees competing for sunlight

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NGSS.MS-LS2-2

In a predator-prey relationship, what role does the prey play?

• The prey benefits from the predator

• The prey competes with other prey

• The prey tries to outsmart the predator

• The prey hunts the predator

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NGSS.MS-LS2-2

Which of the following is an example of a predator-prey relationship?

• Termites and protozoa

• Hermit crabs and snails

• Bears and salmon

• Lions and hyenas

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What is mutualism in symbiosis?

• Both organisms benefit

• Both organisms are harmed

• One organism benefits and the other is neither helped nor harmed

• One organism benefits and the other is harmed

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Which of the following is an example of mutualism?

• Lampreys feeding on other fish

• Hermit crabs living in abandoned snail shells

• Bacteria in human intestines

• Mites hitching a ride on flies

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NGSS.MS-LS2-2

What is commensalism in symbiosis?

• Both organisms benefit

• One organism benefits and the other is harmed

• One organism benefits and the other is neither helped nor harmed

• Both organisms are harmed

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NGSS.MS-LS2-2

Which of the following is an example of commensalism?

• Termites and protozoa

• Squirrels living in trees

• Bears and salmon

• Lampreys feeding on other fish

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NGSS.MS-LS2-2

What is parasitism in symbiosis?

• One organism benefits and the other is harmed

• One organism benefits and the other is neither helped nor harmed

• Both organisms are harmed

• Both organisms benefit