Primary vs Secondary

In an ecosystem, there are populations of moose, rabbits, grass, and pine trees. Suddenly, a fire blazes through the area, which kills all of the populations. As the months go on, new species of grass begin to take root. This attracts animals, and eventually the ecosystem is restored.

What type of ecological succession happened?

• Primary succession

• Secondary succession

• Tertiary succession

• None of the above

Tags

NGSS.MS-LS2-4

Secondary succession is typically:

• Slower than primary succession

• Faster than primary succession

• The same speed as primary succession

• Irrelevant to ecosystem recovery

Answer explanation

Secondary succession is faster than primary succession because it occurs in areas where soil and some organisms already exist, allowing for quicker recovery and re-establishment of the ecosystem.

After a forest fire, an ecosystem would start regrowth through -

• primary succession

• secondary succession

• climax community

• limiting factors

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What type of succession is shown going from figure A to figure B?

• primary succession

• eutrophication

• secondary succession

• intermediate

Tags

NGSS.MS-LS2-4

Reaches a climax community quicker because soil is already present

• primary succession 

• secondary succession

• both types of succession

This picture is an example of

• Climax Community

• Primary Succession

• Secondary Succession

• Pioneer Species

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

After a volcano destroys the land, ________________ succession takes place.

• Secondary

• Primary

• Tertiary

• Important

Tags

NGSS.MS-ESS2-2

succession that occurs in an area with no soil

• ecological succession 

• primary succession 

• secondary succession

• pioneer speciles

starts with bare rock followed by lichen

• primary succession 

• secondary succession

• both types of succession

reaches a climax community quicker because soil is already present

• primary succession 

• secondary succession

• both types of succession