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Question 20N.3.SL.TZ0.c

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Date November 2020 Marks available [Maximum mark: 2] Reference code 20N.3.SL.TZ0.c
Level SL Paper 3 Time zone TZ0
Command term Suggest Question number c Adapted from N/A
c.
[Maximum mark: 2]
20N.3.SL.TZ0.c

Ecologists studied the distribution of five species of insectivorous wood warblers of the genus Dendorica living on different parts of coniferous trees in mature forests.

Other than position in the tree, suggest two ways in which the niches of the warblers in the ecosystem may differ.

1.

2.

 

[2]

Markscheme

a. different food/prey;

b. different predators;

c. active at different times of the day;

d. present at different times of the year;

e. different nest sites;

f. different temperatures;

Do not accept “different habitats”.

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