Ecosystems and Interconnectedness

Fill in the blank: __________ is the term used to describe the interconnectedness of all living organisms and their physical environment.

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NGSS.MS-LS2-3

Fill in the blank: Biodiversity helps in maintaining the balance of the ecosystem by providing __________.

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

Open-ended: Explain how the loss of a single species can affect an entire ecosystem.

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NGSS.MS-LS2-4

Open-ended: Describe the role of keystone species in an ecosystem.

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NGSS.MS-LS2-2

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NGSS.MS-LS2-5

Which of the following is NOT a way in which biodiversity contributes to ecosystem stability?

• Providing a variety of food sources

• Increasing the resilience of ecosystems to disturbances

• Reducing the spread of diseases

• Decreasing the genetic variation within species

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NGSS.MS-LS2-5

Open-ended: How does biodiversity contribute to the sustainability of agricultural systems?

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NGSS.MS-LS2-5

Which of the following is a direct benefit of biodiversity to humans?

• Increased carbon dioxide levels

• Enhanced soil erosion

• Provision of medicinal resources

• Decreased water quality

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NGSS.MS-LS2-5

Which of the following best describes biodiversity?

• The variety of life in the world or in a particular habitat or ecosystem.

• The number of species in a given area.

• The genetic variation within a species.

• The number of ecosystems in a region.

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NGSS.MS-LS2-5

What is the name of the scientist who conducted extensive explorations and recognized the interconnectedness of ecosystems and species, also known as the 'Father of Ecology'?

• Alexander von Humboldt

• Paul Ehrlich

• John Muir

• Eugene Odum

The non-living components of an ecosystem that influence its characteristics and dynamics are called

• Biotic factors

• Habitat

• Ecosystem

• Abiotic factors

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NGSS.MS-ESS2-4