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IB Biology SL 4.2.10 Plastic Pollution

Practise explaining how marine plastic harms wildlife through ingestion, entanglement and persistent accumulation.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Explain how ingestion and entanglement make plastic pollution harmful to marine wildlife.
  • Use albatross and marine-bird evidence to describe consequences of plastic waste.

D4.2.10—Plastic pollution of oceans question 1

[Maximum number: 2]

Data from the International Union for Conservation of Nature (IUCN) indicates that the population numbers of many mammal species are decreasing. The chart shows reasons for the decrease and the number of species in each category of danger.

Figure for Question D4.2.10—Plastic pollution of oceans question 1 — IB Biology SL

Explain the impact of plastic waste on Laysan albatrosses (Phoebastria immutabilis).

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