Drivetrain Services. Jiffy LubeÂ® is one of the largest providers of preventive maintenance and light duty repair in North America. Jiffy Lube knows what grinds your gears: old, broken-down differential fluid. Jiffy Lube will remove old fluid and replace it with new fluid.
Life exhibits varying degrees of organization. Atoms are organized into molecules, molecules into organelles, and organelles into cells, and so on. According to the Cell Theory, all living things are composed of one or more cells, and the functions of a multicellular organism are a consequence of the types of cells it has. Cells fall into two broad groups: prokaryotes and eukaryotes.
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. Cells consist of cytoplasm enclosed within a membrane, which contains many biomolecules such as proteins and nucleic acids.