The herbaceous mile-a-minute weed Mikania micrantha Kunth (Asteraceae) is an invasive plant that is known to cause substantial economic and ecological loss in forestry and plantation sectors in its introduced range of Asia-Pacific countries (Sankaran et al., 2008).
Burj Dubai has around 160 flights of stairs.Now called Burj Khalifa. The total number of stairs to Level 160 (the top habitable floor)of Burj Dubai is 2,909; to climb even higher (46 more maintanence levels), ladders are used.
The Burj Khalifa has got 160 habitable floors, 46 maintenance levels in the spire and two parking levels in the basement. 206 floors in total. The floors 161-206 are reserved for architects, workers and builders for the control of the tower. No one can go beyond the 160 floor without a permission.