Â  Baker and Baker placed it onto filter paper and reacted it with a ninhydrin assay in a 1973 study that demonstrated it contained amino acids, such as the asparagine and glutamine produced by Erythrina ► that is ultimately consumed by certain passerine species.  
Chittka and Schurkens speculated that the high concentrations of this in Impatiens glandulifera has allowed that Himalayan species to become invasive in Europe.Â  Baker and Baker placed it onto filter paper and reacted it with a ninhydrin assay in a 1973 study that demonstrated it contained amino acids, such as the asparagine and glutamine produced by Erythrina ► that is ultimately consumed by certain passerine species.  Grayanotoxin is present in the version of this created by Rhododendrons that causes production of a certain "mad" byproduct, while large concentrations are produced by some New Zealand species to attract the Hoplodactylus and other lizards.  It is mixed with coniine to help capture prey by the Sarracenia flava, and a few African gerbils consume highly viscous forms of it.  More notable consumers of it are guided to it by darker ultraviolet regions on flowers.Â  For 10 points, name this sugary substance produced in plants, used to make honey by bees.
Chittka and Schurkens speculated that the high concentrations of this in Impatiens glandulifera has allowed that Himalayan species to become invasive in Europe.
Nectar