Primary Succession and Secondary Succession

Which of the following best describes primary succession?

• Volcano wipes out ecosystem that gradually grows back from ash covered soil

• Volcano creates a new island of rock that must break down to form an ecosystem

• Forest fire burns down forest that must bounce back over time

• Tornado destroys a crop that must slowly grow back over time.

Which would result in primary succession?

• volcano destroying habitat leaving only soil and ash

• Tornado destroying a crop leaving very little soil

• Glacier retreating exposing bare rock

• limiting factors

Tags

NGSS.MS-ESS2-2

How do pioneer species compare in primary and secondary succession?

• primary starts with grass and weeds, secondary starts with mosses

• primary starts with forest fire, secondary starts with volcano

• primary starts with a volcano, secondary starts with a forest fire

• Lichens and moss in primary, and grasses/ ferns in secondary

What is a common characteristic among pioneer species?

• roots that break apart rocks

• long thick roots

• exposed surface roots

• soak up water quickly

Which would most likely result in primary succession?

• old forest growing

• undisturbed prairie

• pollution kills mountain lake species

• a Newly formed volcanic island

Which progression best explains secondary succession?

• lichens>grass>shrubs>small trees> big trees

• mosses>creates soil>grasses>small trees> big trees

• Volcano destroys ecosystem>grasses>shrubs>small trees>big trees

• Volcano forms new island> lichens>grasses>shrubs>small trees>big trees

Tags

NGSS.MS-LS2-3

Both primary and secondary succession start with...

• modify an area to allow more complex organisms to appear

• lichens and moss

• never reach climax community

• start from a volcano always

An example of typical pioneer species, that is one that appears in the earliest stages of ecological succession is:

• Oak Trees

• Spiders

• Weeds

• Small Conifer Trees

What best describes the term succession?

• rapid changes that create an ecosystem overnight

• gradual changes over time to fully create or restore and ecosystem

• forest with the tallest trees

• the rate species produce offspring

If farmers use a controlled burn to prevent forest fires, what would most likely be the first plants to return?

• trees

• shrubs

• mosses

• grasses

Tags

NGSS.MS-LS2-4