Practice 3.1 An introduction to biodiversity with authentic IB Environmental systems and societies (ESS - Old) exam questions for both SL and HL students. This question bank mirrors Paper 1, 2 structure, covering key topics like ecosystems, human impact, and sustainability. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of IB examiners.
Paper
Level
Question 1
SL & HLPaper 2
1.[4]
Describe two methods for conserving biodiversity ex situ.
Question 2
SL & HLPaper 2
1.[4]
Describe two methods for measuring biodiversity in an ecosystem.
Question 3
HLPaper 2
1.[4]
Describe two methods for assessing genetic diversity within a population.
Question 4
SL & HLPaper 1
1.[3]
Explain the concept of biodiversity intactness and its use in assessing ecosystem health.
Question 5
SL & HLPaper 2
1.[3]
Explain the importance of indicator species in biodiversity assessment.
Question 6
SL & HLPaper 2
1.[3]
Define the term "biodiversity loss" and explain its three main levels.
Question 7
SL & HLPaper 2
1.[4]
Describe two ways in which edge effects can influence biodiversity in fragmented habitats.
Question 8
SL & HLPaper 2
1.[3]
Describe the relationship between biodiversity and latitude.
Question 9
SLPaper 1
Figure 1: Example of a Tundra food web
1.[2]
Outline the impact that a reduction in the polar bear population may have on other populations in the food web shown in Figure 1.
2.[2]
Outline why a reduction in the polar bear population may increase its probability of extinction.
Question 10
SL & HLPaper 2
1.[4]
Describe two ways in which invasive species can impact native biodiversity.