_______________ probably originated as outgrowths of stem tissue that developed a single vascular strand later.

Vascular Strand

Tissue in plants that contains xylem and phloem, responsible for the transportation of water, nutrients, and sugars.

Stem Tissue

The supportive and conductive tissues in the stem of a plant, responsible for transporting nutrients and water throughout the plant.

Familiarize oneself with the formation and historical development of leaves in vascular plants.

Verified Answer

Final Answer :

,Microphylls

Learning Objectives

Familiarize oneself with the formation and historical development of leaves in vascular plants.