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.
All living things are made of cells. The cell is the basic unit of life. Cells have systems that allow them to carry out all life processes. Some organisms have one cell and some have many cells. Many-celled organisms have cells that organize internally from cells to tissues to organs to organ systems. There are similarities among organisms. All many-celled organisms are