Question

How stem is modified?Give it special functions?

Answer 1

Modified stems that grow horizontally underground are either rhizomes, from which vertical shoots grow, or fleshier, food-storing corms. New plants can arise from the nodes of stolons and runners (an aboveground stolon): stems that run parallel to the ground, or just below the surface.

Answer 2

Answer:

• Cladodes or cladophylls-are flat, leaflike stems modified for photosynthesis. Succulent stems-of plants have a low surface to volume ration and store large amounts of water and are common in desert plants. Thorns-are modified stems that protect plants from grazing animals. Spines are modified leaves.