Ecological Succession

Multiple Choice

Why is ecological succession important for ecosystems?

• It helps maintain biodiversity and ecosystem stability.

• It causes the extinction of species.

• It prevents any changes in the environment.

• It only benefits plants, not animals.

Open Ended

Describe a situation in which primary succession might occur in nature.

Multiple Choice

Which of the following best describes a pioneer species in primary succession?

• The first organisms to grow in a new environment, such as lichens and mosses

• The last organisms to appear in a mature community

• Animals that migrate into a new area after plants have grown

• Plants that require rich, developed soil to grow

Multiple Select

Which of the following are changes that occur as primary succession progresses?

• Soil formation increases

• Larger plants begin to grow

• Animal species move in

• The area remains barren

Fill in the Blanks

A mature and stable community of plants and animals at the end of succession is called a

community.

Open Ended

Explain how the process of primary succession leads to the development of a climax community.

Open Ended

Describe a situation in which secondary succession might occur and explain the process that follows.

Multiple Choice

What is a key difference between primary and secondary succession?

• Primary succession starts in areas with no soil, while secondary succession starts where soil is already present.

• Primary succession occurs after a disturbance, while secondary succession does not.

• Secondary succession takes longer than primary succession.

• Primary succession only involves plants, while secondary succession only involves animals.

Open Ended

Explain how the analogy of baking cookies helps illustrate the difference between primary and secondary succession.

Multiple Choice

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

• Primary succession forms a brand-new ecosystem, while secondary succession recovers an old ecosystem.

• Primary succession happens in water, while secondary succession happens on land.

• Primary succession only involves animals, while secondary succession only involves plants.

• Primary succession occurs faster than secondary succession.