Which tissue layer in dicotyledonous angiosperm stems is responsible for secondary growth, generating secondary xylem inward and secondary phloem outward?
Answer and explanation
Correct answer: A. Vascular cambium
- Step 1: Vascular cambium is a lateral meristem located between primary xylem and phloem. Step 2. Its mitotic divisions produce secondary xylem (wood) toward the interior and secondary phloem toward the exterior. Answer: Vascular cambium. Why not the others: Cork cambium produces periderm/bark; apical meristem produces primary elongation.
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