Class 9 | Science | Chapter 5 |The Fundamental Unit of Life| NCERT Solutions Page 59 1. Who discovered cells, and how? Answer: Cells were discovered in 1665 by an English Botanist, Robert Hooke. He used a primitive microscope to observe cells in a cork slice. 2. Why is the cell called the structural and functional unit of ? Answer: Cell is the smallest unit of … [Read more...] about Chapter 5 The Fundamental Unit of Life