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IB Biology HL 4.2.10 Trophic levels and complex food webs Question Bank

Practise IB Biology HL 4.2.10 by analysing trophic positions and classification limits in complex food webs.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Analyse trophic positions when organisms occupy more than one level.
  • Evaluate difficulties classifying detritivores and omnivores in complex food webs.

C4.2.10—Trophic levels question 1

[Maximum number: 2]

The Chinese pangolin (Manis pentadactyla) is a critically endangered species that has declined in numbers by 80 % since 2000 . It inhabits both forest and grassland, where it uses long, powerful claws to open ant and termite nests and ingests the insects using a long, sticky tongue.

Figure for Question C4.2.10—Trophic levels question 1 — IB Biology HL

Explain what information is needed to find the trophic level of pangolins.

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