Standard Science Primary 3 Cycles

Why do insects like cockroaches moult several times during their nymph stage?

A To change their colour.
B To allow their bodies to grow bigger.
C To protect themselves from predators.
D To help them fly better.
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Worked Solution

Step 1: Insects have a hard outer covering (exoskeleton) that does not grow. Step 2: To grow larger, they must shed this covering. Step 3: This process is called moulting.

Correct answer: To allow their bodies to grow bigger.

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