Unit 2 Diagnostic

Front

What is ecological succession?

Back

Ecological succession is the process by which ecosystems change and develop over time, involving a series of stages where different species replace one another.

Front

What are lichens and their role in ecological succession?

Back

Lichens are symbiotic organisms made of fungi and algae. They are often the first species to colonize barren environments, helping to create soil by breaking down rock.

Front

Define endemic species.

Back

An endemic species is a species that is found in a specific geographic area and nowhere else in the world.

Front

What is an invasive species?

Back

An invasive species is a non-native species that spreads widely in a new habitat, often outcompeting native species and disrupting ecosystems.

Front

What is a seed bank?

Back

A seed bank is a natural or artificial storage of seeds that can be used for future plant growth, preserving genetic diversity.

Front

What adaptations do mangrove trees have for survival in coastal areas?

Back

Mangrove trees have specialized roots that can filter salt and provide stability in muddy, waterlogged soils.

Front

What is the significance of a soil profile in forest regrowth?

Back

A soil profile contains layers of soil that provide nutrients and support for new plant growth after disturbances like logging.

Front

Explain the term 'understory' in a forest ecosystem.

Back

The understory is the layer of vegetation beneath the forest canopy, consisting of smaller trees, shrubs, and young plants.

Front

What role do root systems play in forest regeneration?

Back

Root systems help stabilize soil, retain moisture, and provide nutrients for new plant growth after disturbances.

Front

What is the difference between threatened and endangered species?

Back

Threatened species are likely to become endangered in the near future, while endangered species are at immediate risk of extinction.