Reabsorbtion. Occuring more commonly within the nephron system than filtration, this is a form of active transport which takes the the useful substances for the body from the tubules and places them back into the blood filled capillaries.
Oleanders are shrubs, but they are _big_ shrubs. Most of the varieties in cultivation top out at 8 to 12 feet tall and about the same width. The wild form, and some of the older cultivars used for windbreaks top out at 20 x 20 feet.
The genus Viburnum includes several species of blooming shrubs that grow well planted in a group or as a hedge for privacy. Viburnums generally produce dense, foliage-covered branches and clusters of white flowers in late spring, followed by small red or purple fruits attractive to birds.leanders (Nerium oleander) are broadleaf evergreen shrubs that grow in an upright, rounded form. They reach a mature height of about 8 feet and spread to about 5 feet, making them a good choice for a privacy hedge.