Standard Science Primary 6 Interactions

Study the food web below. If a disease kills all the frogs in the pond, which organism's population is likely to increase first?

A Algae
B Dragonfly nymphs
C Small fish
D Water plants
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Worked Solution

Step 1: Identify the predator of the dragonfly nymphs in the web (Frogs). Step [2-9]: Determine the relationship. If the predator (frogs) is removed, the prey (dragonfly nymphs) will have fewer predators. Step [2-9]: Therefore, the population of dragonfly nymphs will increase first.

Correct answer: Dragonfly nymphs

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