Symbiotic Relationships in Nature

What is the term used to describe the interaction between different species for survival?

• Isolation

• Competition

• Symbiosis

• Predation

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NGSS.MS-LS2-2

Which type of symbiotic relationship benefits both parties involved?

• Solitarism

• Parasitism

• Commensalism

• Mutualism

In mutualism, what do smaller fish receive from cleaning larger marine animals?

• Oxygen

• Food

• A place to live

• Protection

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NGSS.MS-LS2-2

What do ants obtain from aphids in their commensal relationship?

• Leaves

• Protection

• Shelter

• Honeydew

How do ants manipulate aphids to stay in one place?

• By singing to them

• By removing their wings

• By building fences

• By feeding them

What is the most toxic symbiotic relationship?

• Mutualism

• Commensalism

• Cooperation

• Parasitism

What does the ceps fungus do to insects?

• It makes them stronger

• It controls their brain

• It changes their color

• It makes them faster

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NGSS.MS-LS2-4

What is the outcome for insects infected by the ceps fungus?

• They learn to avoid predators

• They die after spreading spores

• They reproduce more

• They become larger

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NGSS.MS-LS1-5

NGSS.MS-LS2-4

How does commensalism differ from mutualism?

• In commensalism, both organisms are harmed, while in mutualism, both benefit.

• In commensalism, one organism benefits and the other is unaffected, while in mutualism, both organisms benefit.

• In commensalism, one organism is harmed and the other benefits, while in mutualism, both are unaffected.

• There is no difference; they are terms used interchangeably.

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NGSS.MS-LS2-2

Which of the following scenarios is an example of mutualism?

• A spider building a web on a plant.

• A cow grazing on grass.

• Fungi forming mycorrhizae with the roots of a plant, aiding in nutrient absorption.

• A tick feeding on a dog.

Answer explanation

The correct scenario of mutualism is fungi forming mycorrhizae with the roots of a plant, aiding in nutrient absorption.

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NGSS.MS-LS2-2