biodiversity and sustainability

The following table lists the number and variety of organisms in four different ecosystems.

Based on the table, which ecosystem is likely the most sustainable?

• Ecosystem 1

• Ecosystem 2

• Ecosystem 3

• Ecosystem 4

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-1

Based on the table of observations, which ecosystem is likely to be the least sustainable?

• A. Ecosystem 1, because it has the fewest species

• B. Ecosystem 2, because it includes both aquatic and terrestrial species.

• C. Ecosystem 3, because it has few predators.

• D. Ecosystem 4, because it supports many animals.

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-2

What does biodiversity indicate about an ecosystem?

• the location of the ecosystem

• the overall size of the ecosystem

• the ability of the ecosystem to survive change

• the identity of the organisms that began ecological succession in the ecosystem

Tags

NGSS.MS-LS2-5

What is the difference between biotic and abiotic?

• Biotic are non-living things
• Abiotic are living organisms
• Biotic is life,
  Abiotic is non-living
• Biotic is non-living, Abiotic is living

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NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-LS2-3

The final stable community that is made up of mature, hardwood trees is called

• A. pioneer community

• B. climax community

• C. farmland

• D. old field

An ecosystem that is not sustainable can break down when a natural disaster occurs. This can lead to organisms in the ecosystem either leaving the area or dying off.

Increased biodiversity results in a more sustainable ecosystem because -

• F. A greater number of plant species means that there is less barren land

• G. A greater variety of species present allows more organisms to adapt after changes occur

• H. The transition area between two ecosystems is narrower.

• J. There are fewer species to be affected by environmental stresses

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-4

You observe a garden in a schoolyard. Corn, tomatoes, pumpkins, and other crops thrive in the garden. What is most likely true of the soil in this microhabitat?

• It is dry and frozen.

• It is rocky, sandy, and dry.

• It is deep, dark, and nutrient rich.

• It is thin, acidic, and nutrient poor.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-LS1-5

What does biodiversity mean?

• Only one species in an area.
• The different amount of species in an area
• All abiotic life
• Nitrogen fixation

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-2

A hurricane hits a coastal prairie and destroys the habitat. Years later there is an appearance of small plants with rapidly spreading roots. This vegetation describes

• A. a microhabitat

• B. primary succession

• C. secondary succession

• D. biodiversity

Tags

NGSS.MS-LS2-4

What is true about sustainability?

• Having a small number of species increases biodiversity

• Sustainability is how organisms change over time

• Sustainability is how much rainfall and sunlight an ecosystem receives

• The more different types of species you have (biodiversity) the better an ecosystem can sustain itself

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-4