APES Ch 6 Population and Community Ecology

The organisms that represent all of the different interacting species within an ecosystem make up a 

• population
• community
• trophic level
• biosphere

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NGSS.MS-LS2-2

The intrinsic growth rate of a population

• directly affects environmental resistance
• causes changes in death rates without affecting birth rates
• is the maximum rate at which a population may increase 
• all of the above

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NGSS.HS-LS2-2

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An exotic species is one which ____________ an ecosystem.

• is rare in
• is foreign to
• does not interact with other species in
• destroys

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Most parasites have evolved to __________ their host.

• kill
• only weaken
• have no effect on
• strengthen

Predation is similar to _______________ in that both types of relationship benefit one of the interacting species while the other is harmed.

• commensalism
• competition
• mutualism
• parasitism

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NGSS.MS-LS2-2

If you were studying the niche of a species of bird, you might study 

• the food it eats
• its predators
• the temperature it needs to survive
• all of the above

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Two species that have a high degree of niche overlap will

• compete intensely
• speciate
• interbreed
• be a predator-prey pair

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NGSS.HS-LS4-2

If an insect eats the lettuce seedlings in your yard, it is acting most like a(n)

• mutualist
• host
• commensalist
• herbivore

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NGSS.MS-LS2-4

Many plants have their roots infected with a specialized fungus. The plant supplies carbon to the fungus, and the fungus supplies nutrients to the plant. This is an example of a _______________ association.

• mutualistic
• commensalistic
• parasitic
• predator/prey

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NGSS.MS-LS2-2

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A species that plays a major role in determining the structure of its ecological community is

• predator
• a dominator species
• a keystone species
• the largest species

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NGSS.MS-LS2-2

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