Multiple choice A(n) _______ plant has its xylem and phloem arranged in a circle around a pith. Monocotyledon Dicotyledon Monoecious Dioecious Reveal answer Fill a bubble to check yourself B Correct answer Explanation In dicotyledonous stems, vascular bundles (xylem and phloem) are arranged in a distinct ring pattern around a central pith. Monocots have scattered bundles.