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.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-3

NGSS.MS-ESS2-2

What term best relates to equilibrium?

• pioneer species

• primary succession

• secondary succession

• climax community

Breaking News! A new island has formed off of Hawaii! What must occur for it to become an ecosystem?

• Secondary Succession

• Aquatic succession

• Primary Succession

• Ferns must grow

Tags

NGSS.MS-LS2-4

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-LS2-4

NGSS.MS-LS2-3

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

Tags

NGSS.MS-LS2-4

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

Primary succession occurs in areas with:

• very little soil

• lots of soil

• no soil

• soil that has been disturbed

Tags

NGSS.MS-LS2-3

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

Why do grasses appear before shrubs in ecological succession?

• loosen the dirt for new trees to take roots?

• provide food for animals returning to the area

• require plenty of sunlight to make their own food

• can grow even in areas with shallow soil

Tags

NGSS.MS-LS1-6

succession that occurs in an area with no soil

• ecological succession 
• primary succession 
• secondary succession
• pioneer speciles