Ecological Succession

What do we call a major change in an ecosystem?

• Evolution

• Disturbance

• Adaptation

• Migration

An organism's environment may change in a number of ways due to a variety of reasons. What is this change called?

• Evolution

• Disturbance

• Adaptation

• Migration

Which of the following is an example of a disturbance caused by humans?

• Fire

• Wind

• Logging

• Blizzard

Which of the following is an example of a natural disturbance?

• Urbanization

• Air Pollution

• Deforestation

• Drought

Which of the following is NOT an example of a natural disturbance?

• Fire

• Wind

• Air Pollution

• Blizzard

Which disturbance is characterized by the removal of trees?

• Fire

• Logging

• Wind

• Blizzard

How can disturbances cause a change in the types of species found in an ecosystem?

• All species will die out.

• Some species might be better adapted to changes following a disturbance.

• No species will be affected.

• All species will adapt equally well.

What is one impact of droughts on plant diversity?

• Droughts can increase plant diversity.

• Droughts can result in the loss of plant diversity.

• Droughts have no effect on plant diversity.

• Droughts can only affect animal diversity.

Which of the following is an impact of human activities on the environment?

• Pollution

• Photosynthesis

• Natural disasters

• Evolution

What is one of the impacts of human activities on forests?

• Deforestation

• Photosynthesis

• Natural growth

• Reforestation