A flower is a reproductive organ. in which the seeds are formed and therefore its main parts are the stamens and the pistil. For protection from wind, dust and to attract insects, the main organs of the flower are surrounded by a perianth. If the perianth consists of a calyx and a corolla, then it is called double, like an apple tree, a cherry. bell. But if it consists only of a corolla, like a lily of the valley, lily, snowdrop, or only a cup, like a gravilat, then it is called simple. This is their main difference.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.