Unit 4/DCP Review

Front

What is secondary succession?

Back

Secondary succession is the process of ecological recovery that occurs in an area where a disturbance has destroyed an existing ecosystem but left the soil intact, allowing for the regrowth of vegetation.

Front

What causes seasons on Earth?

Back

Seasons are caused by the tilt of the Earth's axis and its revolution around the sun, leading to varying angles of sunlight and temperature in different hemispheres.

Front

What is the role of social cooperation in organisms?

Back

Social cooperation in organisms helps in various ways, including aiding in the separation of groups, conserving energy, and enhancing survival through collective behaviors.

Front

How does biodiversity affect ecosystem resilience?

Back

Higher biodiversity leads to greater resilience in an ecosystem, allowing it to better withstand and recover from disturbances.

Front

How long does it take for the Earth to complete one full rotation on its axis?

Back

The Earth takes 24 hours to complete one full rotation on its axis.

Front

What is ecological succession?

Back

Ecological succession is the process by which ecosystems change and develop over time, involving a series of stages from pioneer species to a mature ecosystem.

Front

What is primary succession?

Back

Primary succession occurs in lifeless areas where soil has not yet formed, such as after a volcanic eruption or glacier retreat, leading to the establishment of a new ecosystem.

Front

What is the difference between primary and secondary succession?

Back

Primary succession starts from bare rock or lifeless areas without soil, while secondary succession occurs in areas where an ecosystem has been disturbed but soil remains.

Front

What is the significance of the Earth's axial tilt?

Back

The Earth's axial tilt is significant because it affects the distribution of sunlight on the planet, leading to the changing seasons.

Front

What is an example of a disturbance that can lead to secondary succession?

Back

An example of a disturbance that can lead to secondary succession is a forest fire that clears vegetation but leaves the soil intact.