Shelf Life: Canola Carrier Oil is very stable; users can expect a shelf life of 6 months to 1 year with proper storage conditions (cool, out of direct sunlight). Refrigeration after opening is recommended.
*Hans and Zacharias Janssen had to first develop the microscope before cells could be discovered. Robert Hooke then discovered empty, dead cork cells in tree bark. Anton van Leeuwenhoek discovered the existence of living cells and is sometimes given credit for the microscope. 5. List the three parts of the cell theory.
The cell theory is credited to the scientists, particularly, Theodor Schwann, Matthias Jakob Schleiden, and Rudolf Virchow. Theodor Schwann, a German physiologist, stated in his writings that all living things are composed of cells and the products of cells in their structures. All living things are made up of one or more cells. 2  The cell is the structural and functional unit of all living things. 3  Cells come from pre-existing cells through the process of division. 4  All cells are the same in regard to chemical composition.