Ecological Succession

What type of succession is shown going from figure A to figure B?

• primary succession
• ecological succession
• secondary succession
• intermediate

The picture shows what type of succession?

• primary
• secondary
• tertiary
• quadanary

What are examples of pioneer species in a primary succession?

• Bushes and Shrubs
• Oak trees
• Mossess and Lichens 
• A rose Bush

Final illustration (#8) shows

• pioneer species
• climax community
• only biotic factors
• only abiotic factors

Succession type?

• primary succession
• secondary succession
• tertiary succession
• variable succession

What is the most important function of pioneer species?

• To create rocks
• To create soil and add nutrients to the environment 
• To look nice
• Food for animals 

Natural disasters such as flooding and tornadoes are linked to ________________.

• primary
• secondary
• old field
• ecosystem

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.

What is an example of a disturbance that could bring about secondary succession?

• Humans cut down many trees in a small region

• A volcanic eruption covers a village in lava.

Why does biodiversity increase during the course of succession?

• Biodiversity refers to the difference in ages of organisms, so some organisms arrive earlier than others.

• Over time, the same trees begin to reproduce and take over an area.

• Many populations of organisms gradually begin to occupy the same area to create a climax community.

• Many organisms move in to the area for a short amount of time, then leave to find a better habitat.