question_answer

What happens in plants during vascularisation?

A) Differentiation of procambium, formation of primary phloem followed by formation of primary xylem.

B) Differentiation of procambium followed by the formation of primary phloem and xylem simultaneously.

C) Formation of procambium, primary phloem and xylem simultaneously.

D) Differentiation of procambium followed by the formation of secondary xylem.