DP Biology (first assessment 2025)

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Question 19M.1A.SL.TZ2.18

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1A.SL.TZ2.18
Level SL Paper 1A Time zone TZ2
Command term Deduce Question number 18 Adapted from N/A
18.
[Maximum mark: 1]
19M.1A.SL.TZ2.18

The Silver Springs feed into the Silver River in Florida. The diagram shows a pyramid of energy for the Silver Springs ecosystem. The units are kJ m–2 y–1.

[Source: © International Baccalaureate Organization 2019]

 

What do level I and level III represent in the pyramid of energy?

[1]

Markscheme

C

Examiners report

This question was easy, most candidates recognized that I was the producer and only a few believed II was a tertiary consumer instead of a secondary consumer.

Syllabus sections