Unit 1: Unity and Diversity
Topic 1.9: Conservation of Biodiversity Questions
Practice 20 exam-style questions for IB Biology Topic 1.9. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.
1Identify1 mark
The figure shows the five human drivers pushing biodiversity down, with one drawn largest because it destroys the most.
Which driver is drawn largest in the figure?
[Diagram: bio-biodiversity-drivers]
Markscheme and model answer locked
Unlock Question2Draw3 marks
• Aimnova practice
Draw and label a simple diagram showing the five human-driven causes of biodiversity loss, indicating which cause has the greatest impact.
Markscheme and model answer locked
Unlock Question3Identify1 mark
When beavers move into a stream they raise the number of invertebrate species living there.
Why does this rise in biodiversity benefit the ecosystem?
Markscheme and model answer locked
Unlock Question4Identify1 mark
Which of the following human activities is a cause of global biodiversity loss?
Markscheme and model answer locked
Unlock Question5Outline2 marks
• Aimnova practice
Other than ecosystem stability, outline two ways in which high biodiversity is valuable to humans.
Markscheme and model answer locked
Unlock Question6Outline2 marks
• Aimnova practice
A national park is set up to protect a single endangered primate species.
Outline why protecting this species in situ also helps conserve many other species in the same area.
Markscheme and model answer locked
Unlock Question7Identify1 mark
What best defines a keystone species?
Markscheme and model answer locked
Unlock Question8Identify1 mark
What is the long-term goal of rewilding a degraded ecosystem?
Markscheme and model answer locked
Unlock Question9Identify1 mark
Which statement best describes what biodiversity means?
Markscheme and model answer locked
Unlock Question10Identify1 mark
Bees pollinating a farmer's crops is an example of which value of biodiversity?
Markscheme and model answer locked
Unlock Question11Identify1 mark
In the EDGE of Existence conservation programme, what do the letters EDGE stand for?
Markscheme and model answer locked
Unlock Question12Identify1 mark
Which description best matches the 'globally endangered' part of an EDGE score?
Markscheme and model answer locked
Unlock Question13List3 marks
• Aimnova practice
Wild bee populations are falling across a region of intensive farmland.
List three different human activities that could be threatening these insect pollinators.
Markscheme and model answer locked
Unlock Question14Outline2 marks
• Aimnova practice
Outline what is meant by biodiversity.
Markscheme and model answer locked
Unlock Question15Identify1 mark
Which of the following is an example of in situ conservation?
Markscheme and model answer locked
Unlock Question16Define2 marks
• Aimnova practice
Define the term 'evolutionarily distinct' as it is used in the EDGE of Existence programme.
Markscheme and model answer locked
Unlock Question17Define2 marks
• Aimnova practice
Define the term rewilding.
Markscheme and model answer locked
Unlock Question18Identify1 mark
As the sea warms, a coral reef loses its colour and many corals die.
Which cause of biodiversity loss is responsible?
Markscheme and model answer locked
Unlock Question19Identify1 mark
Which statement best defines a wildlife corridor?
Markscheme and model answer locked
Unlock Question20Identify1 mark
A large flightless bird that lived only on one island became extinct within a century of the first people settling there.
The settlers hunted the bird for meat in large numbers.
Which cause of biodiversity loss does this best illustrate?
Markscheme and model answer locked
Unlock QuestionReady to practice Topic 1.9?
Get instant AI feedback on your answers, view detailed markschemes, and track your progress across all IB Biology topics.