Nutrient storage refers to the process by which organisms accumulate and retain essential nutrients for later use. This is crucial for maintaining energy levels and supporting various bodily functions. In plants, nutrients like nitrogen and phosphorus are stored in roots, stems, and leaves, while animals store nutrients in tissues such as fat and muscle. Different organisms have unique methods of nutrient storage. For example, humans store excess energy as glycogen in the liver and muscles, while fats are stored in adipose tissue. Efficient nutrient storage helps ensure that organisms can survive during periods of scarcity or increased demand.