Question
A student curved in the initials of his name in the bark of a young tree at a height of 1.5m above the ground. 3 years later, the initials were found at the same height although the tree had grown some metres taller. Explain this observation.
Answer
Primary growth in plants takes place in the Apical meristem of the shoot and root tip. The initials were carved on the bark a zone of permanent tissues;
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