Answer the following question given this paragraph: Stems are organs that hold plants upright. They allow plants to get the sunlight and air they need. Stems also bear leaves, flowers, cones, and smaller stems. These structures grow at points called nodes. The stem between nodes is called an internode. (See Figure below . ). Q: What is the basic structure that holds plants upright, allowing plants to get the sunlight and air they need? A:

Options are:
+ twig.
+ stamen.
+ root.
+ stem.
Answer:
stem