Short answerEasy1 mark
5(ii)
Arrange the following food chains in a proper sequence.
Small fish, Algae, Mosquito larvae, Kingfisher
Topic: Food chains — aquatic
Previous-year question practice database
Answer
Exam answer
ALGAE → MOSQUITO LARVAE → SMALL FISH → KINGFISHER
Explanation
Every food chain begins with a PRODUCER — the only organism that makes its own food. Here that is ALGAE, and once you have fixed the start, the rest follows by asking "what eats this?"
algae (producer) are eaten by mosquito larvae (primary consumer, herbivore) mosquito larvae are eaten by small fish (secondary consumer) small fish are eaten by the kingfisher (tertiary consumer)
THE METHOD for any food-chain question: find the producer first and put it at the left, then work up by SIZE and by who eats whom. The arrow means "is eaten by", so it always points in the direction the ENERGY flows.
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