unit 7 review

Which of the following biomes supports the greatest variety of organisms?

• A.

• B.

• C.

• D.

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NGSS.MS-LS2-1

NGSS.MS-LS2-5

Biodiversity contributes to the sustainability of an ecosystem because -

• all the organisms in the ecosystem have genetic material

• there is an increased chance for organisms to survive changes

• organisms are allowed to respond to internal and external stimuli

• the flow of energy in an ecosystem remains constant

Tags

NGSS.MS-LS2-5

NGSS.MS-LS4-4

Which of the following is an example of one stage in ecological succession?

• A tree falls over in a forest.

• Weeds grow in a garden.

• Fish swim in a pond.

• A bird lays eggs in a nest.

After a catastrophic wildfire that clears the land of all plants and trees, -

• plants will not grow again in the burned area.

• bushes will grow in the area before weeds grow.

• weeds will grow in the area before trees grow.

• only trees will grow in the burned area.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Why does biodiversity contribute to a habitat’s sustainability?

• The more plants and animals in a habitat, the greater the biomass, which is how habitats store energy.

• The greater the number of species, the more competition there is for food between predators, which sustains their populations

• Changing conditions that harm one species leave other species to survive and perhaps even thrive.

• Landforms change shape less frequently when there is a greater number of species using the land.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Development of life in an area where NO life was originally present

• Primary succession

• Secondary succession

• Pioneer species

• Biomes

Development of life in an area AFTER life was disrupted by humans or a natural disaster

• Primary succession

• Secondary succession

• Pioneer species

• Biomes

The first species to thrive in a new area

• Primary succession

• Secondary succession

• Pioneer species

• Biomes

The greater a habitat’s biodiversity, the greater will be that habitat’s -

• sustainability over time with varying conditions.

• consumption of energy in the form of sunlight.

• temperature ranges across the seasons.

• distance to the nearest water source.

Tags

NGSS.MS-LS2-5

Large climatic regions with distinct plants and animals

• Primary succession

• Secondary succession

• Pioneer species

• Biomes

Tags

NGSS.MS-LS2-2