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.
The cell is the smallest unit of âlifeâ and marks the boundary between the living and the nonliving world. Interestingly enough, cells exhibit all of the characteristics of life mentioned in Chapter One of the text. As a result, cells are the smallest living biological units. We will see in this chapter that all cells have certain features in common, such as cytoplasm (interior of the cell), a cell membrane, a genetic center and the ability to synthesize proteins.