Nail polish will last up to 12 months, depending on the quality and how many times you take it on a plane (the cap always unscrews on me during flights, leaving my purse a -- fume-y -- mess!). See 5 really tacky nail trends.
All fungi are heterotrophic, which means that they get the energy they need to live from other organisms. Like animals, fungi extract the energy stored in the bonds of organic compounds such as sugar and protein from living or dead organisms.
Lichens are a symbiotic relationship between fungus and algae. Their relationship is complex, but mutually reciprocal. The algae provides the fungus with nourishment while the fungus provides the algae with shelter so that it can grow.