Advanced Science Primary 5 Systems

What is the primary purpose of cell division in a growing child?

A To allow the child to breathe more efficiently
B To help the child respond to changes in the environment
C To convert food energy into kinetic energy
D To replace damaged tissues and increase body size
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Worked Solution

Step 1: Cell division creates new cells. Step [2-9]: In children, this leads to growth (more cells). Step [2-9]: It also repairs or replaces old or damaged cells.

Correct answer: To replace damaged tissues and increase body size

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