Exploring Ecological Succession: Primary vs. Secondary

What triggers the process of ecological succession?

• Introduction of new species

• Natural or artificial disturbances

• Climate change

• Pollution

Which type of succession begins in areas devoid of soil?

• Primary succession

• Tertiary succession

• Secondary succession

• Quaternary succession

What is a pioneer species in the context of primary succession?

• Invasive species

• The first species to colonize newly formed land

• The first plants to decay

• The first animals to inhabit an area

Which species are typically pioneer species in primary succession?

• Lichen and moss

• Large mammals

• Aquatic plants

• Hardwood trees

What typically remains after a forest fire, allowing for secondary succession?

• Water sources

• Animal life

• Buildings

• Soil

Which type of trees first grow back after a fire in secondary succession?

• Deciduous trees

• Shade-tolerant trees

• Evergreen trees

• Fruit trees

Tags

NGSS.MS-LS2-4

How does secondary succession differ from primary succession?

• It only occurs underwater

• It begins in areas with existing but disturbed soil

• It never involves plants

• It starts on bare rock

What follows the growth of fast-growing evergreen trees in secondary succession?

• The area becomes a desert

• Deciduous trees overtake the evergreens

• Evergreens prevent any other plants from growing

• The soil erodes completely

Tags

NGSS.MS-LS2-4

What is the role of controlled burns in managing ecosystems?

• Promoting soil erosion

• Reducing wildfire risks and managing plant growth

• Increasing animal habitats

• Enhancing water retention

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What effect do disturbances have on biodiversity over time?

• Increase biodiversity

• Only decrease plant species

• Decrease biodiversity

• No impact on biodiversity

Tags

NGSS.MS-LS2-4