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 Oleander is generally described as a perennial tree or shrub. This is not native to the U.S. (United States) and has its most active growth period in the spring and summer and fall . The Oleander has green foliage and inconspicuous red flowers, with a moderate amount of conspicuous brown fruits or seeds.