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.
This led to the knowledge that all living things were made of cells. In 1855, German physician Rudolph Virchow theorized that all living cells come from other living cells. The contributions of these people led to what we now refer to as the cell theory. This theory states: 1. All living things are made of one or more cells. 2. The cell is the smallest unit of a living organism. 3. Cells come from other cells.