The wood part is seen inside each vascular bundle (see the figure below), and the phloem part faces outward. There is a layer between the xylem and the phloem vessel (see appendix). (ASBiology 101, 2013). However, in the leaves, the vascular bundle forms a vein with the middle rib of the leaf. They form smaller and thinner networks as the distance from the central ribs decreases gradually. In each vein, the wooden part can be seen at the top of the phloem part. (ASBiology 101, 2013). The wood tissue consists of a wooden conduit for transporting water and dissolved minerals, and the fiber helps to support plants and cells.
Petunia growing in water is planted as seedlings (small plants). • Calendula and petunia talk with the children that water and sunlight are necessary to grow. • Allow children to change watering. • Provide opportunities for children through photos, diaries and children using engineering techniques to solve the following problems. • Establish a blocking center in the classroom. "Provide blocks of hardwood of all shapes and sizes" Add hollow blocks and cardboard blocks "Add small cars, trucks and boats" blueprints and maps "Publish photos, books, magazines, postcards And photos included
Within the scope of color, size, shape, anatomy, flowers present seemingly infinite combinations. They are small in size from small flowers to big flowers. In some plants such as poppy, magnolia, tulip, petunia, each flower is produced relatively large, splendid and separately. And it is called a unique cluster of inflorescence. Regardless of their diversity, all flowers have uniform function and breed through seed production. Flowers are the characteristic structure of the most evolved plant, angiosperms. (See also Angiosperms.)