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IB Biology HL 4.2.8 Heterotrophic nutrition and feeding strategies Question Bank

Practise IB Biology HL 4.2.8 by analysing how different heterotrophs obtain and digest organic nutrients.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Compare heterotrophic feeding strategies such as ingestion and saprotrophic absorption.
  • Analyse how structure and behaviour support nutrient acquisition in heterotrophs.

C4.2.8—Heterotrophs question 1

[Maximum number: 1]

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 C4.2.8—Heterotrophs question 1 — IB Biology HL

State with a reason whether pangolins are autotrophic or heterotrophic.

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