by clinicians to inform conduct of urine drug testing for opioids and. other drugs. The first table provides information about two drug testing. techniques, immunoassay and gas chromatography mass spectrometry, and includes a brief description of each technique and their advantages and. disadvantages.
Saguaro cactus continue growing until they're about 100 years old, reaching a standard height of 20-30 feet, with a few as large as 40-50 feet. The lifespan of this plant is approximately 200 years.
: a tall columnar usually sparsely-branched cactus (Carnegiea gigantea) of dry areas of the southwestern United States and Mexico that bears white flowers and a scaly reddish edible fruit and that may attain a height of up to 50 feet (16 meters) âcalled also giant cactus. See saguaro defined for kids. ADVERTISEMENT.