DP Biology (first assessment 2025)

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Question 19M.1A.SL.TZ1.18

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1A.SL.TZ1.18
Level SL Paper 1A Time zone TZ1
Command term Deduce Question number 18 Adapted from N/A
18.
[Maximum mark: 1]
19M.1A.SL.TZ1.18

The diagram shows the food web for an aquatic ecosystem in which letters R–Z represent individual species.

[Source: © International Baccalaureate Organization 2019]

 

Which organism is a tertiary consumer?

A. Organism T

B. Organism U

C. Organism W

D. Organism Y

[1]

Markscheme

B

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