How Organisms Interact With Each Other

Hawks and owls eat the same thing. That relationship is called ___________.

• adaptation
• competition
• parasitism
• mutualism

A scientist who studies ecosystems is called a(n) ____.

• oncologist
• zoologist
• ecologist
• geneticist

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

The relationship between a clown fish and a sea anemone is ______.

• predatory
• parasitic
• mutualistic
• commensalistic

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NGSS.MS-LS2-2

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

• commensalism
• mutualism
• parasitism
• predation

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NGSS.MS-LS2-2

Name the type of this symbiosis?

• Mutualism

• Commensalism

• Parasitism

• Interspecies

Name the type of this symbiosis?

• Mutualism

• Commensalism

• Parasitism

• Interspecies

Commensalism is a symbiotic relationship in which what occurs between the organisms?

• both organisms are harmed

• one benefits, the other is unaffected

• one benefits, the other is harmed

• one benefits by eating the other

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NGSS.MS-LS2-2

Parasites and predators help maintain ecosystem stability because...

• They increase the population of all organisms so ecosystems become diverse

• They decrease the population of certain organisms to ensure no species overpopulates

• They increase the survival of all species

• Any of the above are possible

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

A habitat is the natural surroundings or home of an organism.

• True

• False

The diagram shows the interaction of two animals.

Which of the following animals show the similar interaction as above?

• 
• 
• 

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NGSS.MS-LS2-2