Answer:
Step-by-step explanation:
The stem of an oak tree provides evidence that specialized tissues work together to form organs necessary for function.
1. Xylem and Phloem: The stem of an oak tree contains specialized tissues called xylem and phloem. Xylem transports water and nutrients from the roots to the leaves, while phloem transports sugars produced during photosynthesis from the leaves to other parts of the plant.
2. Vascular Bundles: The xylem and phloem tissues are organized into vascular bundles within the stem. These bundles consist of multiple layers of specialized cells that work together to facilitate the transport of water, nutrients, and sugars throughout the plant.
3. Support and Structure: The stem of an oak tree provides support and structure to the plant. It contains specialized tissues such as collenchyma and sclerenchyma that provide strength and rigidity, allowing the tree to stand upright and withstand external forces like wind.
4. Bark and Cork: The outermost layer of the stem, known as the bark, is made up of specialized tissues that protect the tree from external damage and pathogens. The cork cambium, a specialized tissue layer, produces cork cells that form the protective outer bark.
In summary, the stem of an oak tree demonstrates the collaboration of specialized tissues to form organs necessary for function. The xylem and phloem tissues transport water, nutrients, and sugars, while other specialized tissues provide support, structure, and protection. These coordinated efforts of different tissues within the stem allow the oak tree to grow, thrive, and perform its essential functions