Ecological Succession Quiz

What is ecological succession?

• The gradual change in an ecosystem where one community replaces another.

• A process where animals migrate to new areas.

• A process where one ecosystem remains unchanged over time.

• The sudden change in an ecosystem due to natural disasters.

Which of the following is an example of primary succession?

• A city being built on a plain.

• A field being plowed for agriculture.

• A new island forming from volcanic activity.

• A forest regrowing after a fire.

What role do lichens and mosses play in primary succession?

• They decompose soil to make it less fertile.

• They compete with trees for sunlight.

• They prevent other plants from growing.

• They help in soil formation by breaking down rocks.

In primary succession, why do small plants and shrubs grow well initially?

• Because they have no competition for sunlight.

• Because they can grow in waterlogged areas.

• Because they are resistant to harsh weather conditions.

• Because they are the only plants that can grow without soil.

What is a climax community?

• A mature and stable community of plants and animals.

• A community dominated by pioneer species.

• A community that is constantly changing.

• A community that forms immediately after a disturbance.

How does secondary succession differ from primary succession?

• Secondary succession occurs in areas with existing soil.

• Secondary succession starts with no soil.

• Secondary succession does not involve pioneer species.

• Secondary succession takes longer than primary succession.

Which event could trigger secondary succession?

• A volcanic eruption creating new land.

• A new island forming in the ocean.

• A forest fire clearing an area.

• A glacier retreating and exposing rock.

Why does secondary succession occur more quickly than primary succession?

• Because soil is already present.

• Because it starts with a mature community.

• Because it does not involve any disturbances.

• Because it only involves animal species.

In areas with frequent disturbances, what type of species are most common?

• Exotic plant species.

• Only animal species.

• Pioneer species and smaller organisms.

• Large trees like oaks.

Which analogy best describes primary succession?

• Building a house from pre-made parts.

• Cooking a meal with pre-packaged ingredients.

• Making cookies from scratch with basic ingredients.

• Repainting a room with existing paint.