Biology Topic Practice

The Importance of Biodiversity

Biodiversity is key to a healthy planet and ensures that ecosystems are resilient to change.

How does high biodiversity provide "stability" to an ecosystem?

What is The Importance of Biodiversity?

"Biodiversity is the biological variety and variability of life on Earth, essential for ecosystem health and stability."

Question 1

What is meant by a community in ecology?

Question 2

In a stable community, the populations of all species remain relatively constant. What is this called?

Question 3

Which type of pollution can lead to eutrophication in lakes and rivers?

Question 4

Which term describes the non-living conditions in a habitat, such as temperature and light intensity?

Why Biodiversity Matters

Ensures food web stability; if one species dies out, others can take its place.

Reduces dependence of one species on another for things like food and shelter.

Provides potential medicines and stable environments for humans.

Exam Tip

Monocultures (growing just one crop) are the opposite of high biodiversity and are very unstable.

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