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Interdependence: Short Answer

P6 Science · Topic 6: Interactions Within the Environment: The Interdependence of Organisms · 68 questions · difficulty D1–D3 · Singapore syllabus-aligned

Sample questions

SAMPLE 1
Duckweed is eaten by both snails and tadpoles. Hydrilla is eaten by tadpoles only. Snails are eaten by ducks. Tadpoles are eaten by fish. Fish are eaten by ducks. How many different food chains end with the duck?
SAMPLE 2
Three food chains in a river are: duckweed → snail → duck; duckweed → tadpole → fish → duck; hydrilla → tadpole → fish → duck. How many different organisms eat duckweed?
SAMPLE 3
Study the food web. Which letter is the food producer?
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