Environmental Succession

1. What is the process an ecosystem must go through to return to a climax community after some disturbance event?

• succession

• regression

• procession

• visualization

Tags

NGSS.MS-LS2-4

What is a disruptive event?

• Makes plants grow in an ecosystem.

• Happens before succession in an ecosystem.

• Generates a climax community

Tags

NGSS.MS-LS2-4

Which disturbance would most likely be followed by primary succession?

• forest fire

• volcano

• flood

• all of these would result in primary succession

The organisms that inhabit an ecosystem after succession is complete are the ___________.

• pioneer species

• primary consumers

• tertiary species

• climax community

How do pioneer species get to remote areas like volcanic islands?

• carried by the wind

• carried by birds

• carried by wind and birds

• pioneer species do not inhabit volcanic islands

In primary succession, what is the first thing that must happen before plants can begin to grow?

• rain

• seeds must be planted

• weathering of rock must create soil

• none of these answers

Once a climax community is reached what would cause a change in the ecosystem and succession to begin again?

• some disturbance

• weathering

• evolution

• pollination

Tags

NGSS.MS-LS2-2

1. What must be present for secondary succession to begin?

• bare rock

• soil

• plants

• pioneer species

What are the species called that first inhabit an area that has no living organisms?

• vascular plants

• pioneer species

• climax community

• none of these

What must be present for primary succession to begin?

• bare rock

• soil

• vascular plants

• non-vascular plants