IB Biology SL A4.2.6 Causes of Biodiversity Crisis Questions

Connect population growth to rising resource demand, identify major human pressures, and explain how invasive species disrupt native communities.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Link population growth to rising demand for food, housing, energy and land.
  • Identify overexploitation, urbanisation, deforestation, agriculture, mining and pollution.
  • Explain how invasive lionfish or water hyacinth can outcompete or disrupt native species.

IB Biology SL A4.2.6 Causes of Biodiversity Crisis Questions question 1

[Maximum number: 3]

Insect pollinators are vital to maintaining the biodiversity of ecosystems, but they are threatened by some human actions. Some pollinators, such as honey bees (Apis mellifera), produce honey, which is rich in glucose.

List human actions that could threaten populations of insect pollinators such as bees.

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