Assertion (A): Dicotyledonous stems are capable of undergoing secondary growth.
Reason (R): They possess conjoint, open vascular bundles with a strip of cambium between xylem and phloem.
Assertion (A): Dicotyledonous stems are capable of undergoing secondary growth.
Reason (R): They possess conjoint, open vascular bundles with a strip of cambium between xylem and phloem.