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IB Biology SL C4.2.10 Trophic Levels Questions

Trophic levels classify organisms as producers, primary consumers and higher consumers. In IB Biology SL C4.2.10, use feeding relationships to work out an organism’s level and recognize that omnivores and decomposers may feed across more than one level.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Deduce an organism’s trophic level by tracing its feeding relationships from producers through the organisms it eats.
  • Explain how an omnivore can occupy more than one trophic level because it feeds on organisms from different levels.

IB Biology SL C4.2.10 Trophic Levels Questions question 1

[Maximum number: 1]

A terrestrial food web is shown.

Figure for Question IB Biology SL C4.2.10 Trophic Levels Questions question 1 — IB Biology SL

How many species in the food web are only primary consumers?

A

3

B

4

C

5

D

6

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