Winter Story

Winter is a period of rest for most plants and animals. Especially in plants, due to their inability to move actively and the biological feature to be fixed in one place so that they can vegetate. Their growth stops and stops completely because the temperatures are unsuitable, as well as the sunshine. Also, during this period the water turns into a solid state of ice and cannot be used by plant organisms. Plants and animals have developed a variety of mechanisms to protect against low temperatures - leaf fall and other soft and juicy parts (in plants), and animals go into hibernation or so-called. hibernation in winter dens. The goal is to overcome their worst enemy and the most ferocious manifestation of winter-cold (low temperatures). If they are exposed to cold (which sometimes happens with poor preparation or weakened physiology), the water in the bodies - tissues and organs of plants and animals freezes, causing irreversible biochemical, physiological and mechanical changes in their structure. The formed sharp ice crystals tear the cell walls and membranes, destroy the delicate blood vessels and conducting pipes in living organisms, which is most often deadly for them.