Question : The bodies of living organisms are made of tiny units called ___________.
Option 1: genes
Option 2: centrioles
Option 3: buds
Option 4: cells
Correct Answer: cells
Solution : The correct option is cells .
The bodies of living organisms are made up of tiny units called cells. Cells are the basic structural and functional units of living organisms. Robert Hooke, an English scientist, is credited with the term "cell" using a simple microscope. Later Anton van Leeuwenhoek using more advanced microscopes that he designed and built himself, observed a variety of living cells.