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IB Biology SL C4.2.8 Heterotrophs Questions

Heterotrophs obtain carbon compounds from other organisms or organic matter, then use them for respiration and to synthesize their own biomass. In IB Biology SL C4.2.8, practise identifying heterotrophs and distinguishing consumers, detritivores and saprotrophs by their carbon sources.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Identify heterotrophs as obtaining organic molecules from other organisms or organic matter, unlike autotrophs that synthesize organic compounds from inorganic substances.
  • Recognize saprotrophs and detritivores as heterotrophs that obtain organic matter from dead organisms, and distinguish them from consumers feeding on living organisms.

IB Biology SL C4.2.8 Heterotrophs Questions question 1

[Maximum number: 1]

Which of the following trophic groups include fungi?

A

Detritivores

B

Autotrophs

C

Saprotrophs

D

Producers

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