CAIE IGCSE Biology 19.2.3 Food Webs and Interconnected Food Chains
Practise constructing food webs from feeding relationships and predicting how population changes affect connected organisms.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- construct a food web by joining food chains with every arrow directed from food to feeder
- trace alternative food sources and predators connected to a named organism
- predict population changes after a species declines and justify them through feeding links
19.2.3—Food web as a network question 1
A student recorded the information about an aquatic habitat.
Fig. 4.1 shows the student's notes.
Fig. 4.1
Construct a food web to show the feeding relationships described in Fig. 4.1.
Do not draw the organisms.
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