Lustre and metallic are finishes of photo prints that are very different from each other. While preserving memories, people like to order their prints in either Lustre or metallic finishes depending upon their liking.
Structure of an animal cell. The cell (from Latin cella, meaning small room) is the basic structural, functional, and biological unit of all known living organisms. A cell is the smallest unit of life that can replicate independently, and cells are often called the building blocks of life. The study of cells is called cell biology.
Cell are considered the basic unit of life because all life forms are composed of them. Some forms of life are made of one cell; others contain... Cell are considered the basic unit of life because all life forms are composed of them. Some forms of life are made of one cell; others contain trillions. The simplest forms of life on earth are bacteria. They are made of a single cell, and they are believed to be the first form of life to arise on earth that still exists today. While plant and animal cells are significantly more complex than bacteria, there are a number of similarities that strongly suggest that modern cells descended from bacteria.