Practice A4.2 Conservation of biodiversity with authentic IB Biology exam questions for both SL and HL students. This question bank mirrors Paper 1A, 1B, 2 structure, covering key topics like cell biology, genetics, and ecology. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of IB examiners.
A region once containing a complex wetland ecosystem has been drained and urbanized. Which of the following consequences is least likely to occur?
Based on the trends shown, which region is currently experiencing the most accelerated loss of suitable habitat?

What is a direct consequence of the conversion of Southeast Asia’s dipterocarp forests to monoculture plantations?
Which of the following best explains why urban expansion in India has led to a relatively lower percentage of species decline compared to regions impacted by other drivers?
Which factor contributed to the extinction of the Caribbean monk seal and similar marine species?
Why does conversion of dipterocarp forests to oil palm plantations result in a disproportionately high loss of biodiversity?
Why must biodiversity surveys be repeated over time to provide valid evidence for a biodiversity crisis?
Which of the following best illustrates ecosystem diversity?
The disagreement between “splitters” and “lumpers” in taxonomy highlights what feature of scientific classification?
What type of evidence is considered most reliable when assessing biodiversity change?