Env. Unit 4 -Succession Review

Front

What are abiotic factors?

Back

Abiotic factors are non-living components of an ecosystem that influence living organisms. Examples include weather, wind, rain, sunlight, and rocks.

Front

Which of the following is not a possible cause of ecological succession?

Back

Change of season is not a possible cause of ecological succession.

Front

How is soil formed during primary succession?

Back

Soil is formed through erosion and the activity of pioneer species.

Front

What role do lichens play in primary succession?

Back

Lichens contribute to primary succession by breaking down rock to form soil.

Front

What is ecological succession?

Back

Ecological succession is the process by which ecosystems change and develop over time, often following a disturbance.

Front

What are pioneer species?

Back

Pioneer species are the first organisms to colonize previously disrupted or damaged ecosystems, initiating the process of succession.

Front

What is primary succession?

Back

Primary succession occurs in lifeless areas where soil has not yet formed, such as after a volcanic eruption.

Front

What is secondary succession?

Back

Secondary succession occurs in areas where a disturbance has destroyed an existing ecosystem but left the soil intact.

Front

What is the difference between primary and secondary succession?

Back

Primary succession starts on bare rock without soil, while secondary succession occurs in areas where soil is already present.

Front

What are some examples of disturbances that can lead to ecological succession?

Back

Examples include fires, floods, hurricanes, and human activities like deforestation.