DP Biology (first assessment 2025)

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Question 19N.2.SL.TZ0.c

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Date November 2019 Marks available [Maximum mark: 2] Reference code 19N.2.SL.TZ0.c
Level SL Paper 2 Time zone TZ0
Command term Describe Question number c Adapted from N/A
c.
[Maximum mark: 2]
19N.2.SL.TZ0.c

Describe the major characteristics of a eutrophic lake.

[2]

Markscheme

a. normally shallow ✔

b. low water visibility
OR
high levels of nutrients/phosphates/potassium
OR
low oxygen concentration
OR
high BOD ✔

c. high net primary productivity
OR
algal bloom
OR
low biodiversity ✔

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