7.5 A

After a natural disaster, like a hurricane, what will happen to the damaged ecosystem?

• Nothing; it will remain uninhabited.

• A new, completely different ecosystem will evolve

• An ecosystem like the previous one will be re-established.

• No one really knows what to expect after a natural disaster

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Organisms that are the first to move into an area, and begin forming soil for an ecosystem, are known as

• pioneer species

• endemic species

• a climax community

• invasive species

Which of the following statements is not true of secondary succession?

• moss and lichens must be present

• occurs after a distrubance

• begins with soil

• ends in a climax community

The first organisms to move into an ecosystem are known as __________, such as mosses.

• invasive species

• pioneer species

• climax community

• origin species

When succession reaches its final stage, it is known as a ____________, and will exist until it is destroyed by a disturbance.

• pioneer species

• invasive species

• climax community

• native species

What is an example of an area that is likely to undergo primary succession?

• Glaciers melt and leave exposed rock

• Plants die from drought and decompose

• Land is bulldozed and soil remains

What is the main difference between primary and secondary ecological succession?

• Primary begins WITHOUT soil; Secondary begins WITH soil

• Primary is the first state and secondary is the second stage

• Primary builds plant community; secondary builds animal community

• Primary begins WITH soil; Secondary begins WITHOUT soil

What type of disturbance can be beneficial to ecosystems and communities?

• Volcanic Eruption

• Fire

• Invasive Species

• Flood

Tags

NGSS.MS-LS2-4

Which experiences the least change over time?

• Pioneer Species

• Primary Succession

• Aquatic Succession

• Climax Community

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-LS1-5