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WAEC Biology 2006 Question 44

Question 44

Feeding Relationships and Energy Flow

If a pond contains water weed, tadpoles, Tap-minnows (fish) and is visited after by Herons (bird) what would be the possible food chain?

  1. A.Water weed → Tap-minnow → Heron → Tadpole
  2. B.Water weed → Tadpole → Tap-minnow → Heron
  3. C.Water weed → Heron → Tap-minnow → Tadpole
  4. D.Water weed → Tadpole → Heron → Tap-minnow
Show the answer and explanation

Answer: B (Water weed → Tadpole → Tap-minnow → Heron)

Explanation

The water weed is the producer, tadpoles eat the weed, small fish eat the tadpoles, and herons eat the fish.