CAIE IGCSE Biology 19.2.4 Producers in Food Chains
Practise defining producers and identifying organisms that make organic nutrients using sunlight through photosynthesis.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- define a producer as an organism that makes its own organic nutrients
- state that producers usually use sunlight energy through photosynthesis
- use food-web arrows to identify a plant or phytoplankton as the producer
19.2.4—Producer as an organism that makes its question 1
Coral reefs are important ecosystems.
Fig. 6.2 is part of a food web for a coral reef ecosystem which is similar to the one shown in Fig. 6.1.
Fig. 6.2
State the evidence from the food web in Fig. 6.2, that phytoplankton are producers.
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