Ecological Relationships Review

A pilot fish usually follows behind sharks to pick up food scraps that they leave behind. The fish gets food and the shark is unaffected. This is an example of:

• Mutualism

• Commensalism

• Parasitism

• Decomposition

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NGSS.MS-LS2-2

A clownfish uses a sea anenome as a safe place to live. While living there, the clownfish lures in food for the anenome. This is an example of what type of relationship?

• Predator-Prey
• Commensalism
• Mutualism
• Parasitism

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When predator numbers decrease, prey numbers ____________ because fewer of them are being consumed.

• decrease
• increase
• stay the same
• divide in half

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NGSS.MS-LS2-1

A mongoose eating ticks off a warthog, or a starling eating ticks off a cow are examples of what type of symbiotic relationship?

• Cooperation

• Parasitism

• Commensalism

• Mutualism

A feeding relationship where one organism hunts and one is hunted, such as a Lynx hunting a snowshoe hare, is known as:

• Commensalism

• Decomposistion

• Mutualism

• Predator-Prey

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NGSS.MS-LS2-2

NGSS.MS-LS2-4

The maximum population size of a species that the environment can sustain:

• Prey

• Decomposer

• Carrying Capacity

• Commensalist

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An organism that helps to recycle nutrients within an ecosystem by eating dead or decaying organisms, such as a mushroom, is a:

• Predator

• Autotroph

• Producer

• Decomposer

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In the relationship between the Giant Trevally and the seabird, the seabird is the:

• Predator

• Decomposer

• Prey

• Autotroph

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A general term for a relationship that describe a close interaction between two different species is known as what?

• Biodiversity

• Symbiosis

• Predation

• Emigration

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True story: A moose in Maine was found to be walking in continuous circles. This was found to be caused by a parasite called a:

• mosquito

• cowbird

• lamprey

• brain worm