Topic: Plant tissues and anatomy of root, stem, leaf· Structural Organisation in Animals and Plants

Secondary xylem and phloem in dicot stem are produced by

1. Apical meristems

2. Phellogen

3. Vascular cambium

4. Axillary meristems

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Answer: 3. Vascular cambium

Secondary growth in a dicot stem is by the lateral meristem called vascular cambium.

Vascular cambium cuts secondary xylem inwards and secondary phloem outwards. Apical meristems cause growth in length; phellogen produces cork (periderm); axillary meristems form branches.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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Secondary xylem and phloem in dicot stem are produced by

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