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IB Biology HL B4.2.1 Ecological Niche Questions

Explore ecological niche as a species’ role in its community, then compare diet, predators, activity timing and resource use in IB Biology HL B4.2.1.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Define an ecological niche as a species’ role in its community, including habitat, activity, feeding, reproduction and biotic or abiotic interactions.
  • Compare species niches by diet, predators, activity timing or resource use, explaining how similar habitats can support different niche roles.

Learn this topic

Study B4.2.1—Ecological niche conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology HL B4.2.1 Ecological Niche Questions question 1

[Maximum number: 2]

Explain the concept of an ecological niche.

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