2.1-2.3 review

a measure of the genetic variation among individuals in a population

• genetic diversity

• species diversity

• habitat diversity

• ecosystem diversity

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the number of species in a region or in a particular ecosystem

• genetic diversity

• species diversity

• habitat diversity

• ecosystem diversity

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when a large population declines in number, the amount of genetic diversity carried by surviving individuals is greatly reduced

• population bottleneck

• extinction

• generalists

• specialists

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A ​​ (a)   ​is a species that only lives under a narrow range of biotic or abiotic conditions.

• specialist
• generalist

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​ (a)   is the relative proportion of individuals within the different species in a given area.

• Species evenness
• species richness

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Biodiversity is an important indicator of environmental health.

• True

• False

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Having a higher species diversity results in ecosystems

• being more productive but less resilient

• being more productive and more resilient

• being less productive but more resilient

• more likely to be impacted by disruptions

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Select the ecosystems that would be able to better resist the impact of disturbances or be able to rapidly recover from disutrbances

• those with a higher species diversity

• those with a lower species diversity

• species diversity has no impact on an ecosystem's ability to respond to disturbances

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A Giant Panda has a highly specialized diet and can only live in very specific habitats. It can be considered a

• generalist species

• niche

• invasive species

• specialist species

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Which of the following is false?

• High biodiversity increases an ecosystems ability to recover from disturbances

• Habitat loss will affect generalist species before it affects specialist species

• Population bottlenecks decrease genetic diversity

• Species richness and species evenness are both indicators of biodiversity

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NGSS.MS-LS2-5

NGSS.MS-LS4-4