The decay of the neutron is associated with a quark transformation in which a down quark is converted to an up by the weak interaction . The average lifetime of 10.3 min/0.693 = 14.9 minutes is surprisingly long for a particle decay that yields 1.29 MeV of energy.
The Stella Cherry Tree is a small self pollinating tree which produces an abundance of heart shaped, shiny, black red fruit with red flesh. It can live up to 35 years on a compact 15 foot tree.
Black spruce can grow to reach heights up to 20 m and are thought to live as long as 280 years, though few are thought to reach this age, owing to the prevalence of forest fires and logging in the boreal forest. The dominant feature in the life cycle of the black spruce, and all other coniferous trees, is the cone. A cone, which may also be called a strobilus, consists of a central axis which is surrounded by tightly packed, thick scales.