The bodies of living organisms are made of tiny units called cells. Cells can be seen only with a microscope. Some organisms are made of only one cell. The cell is enclosed by a thin boundary, called the cell membrane. The smallest structural units of a living organism is a:
Choose Your Option
A. Tissue
B. Cell
C. Organ
D. System
Solution & Explanation
No details explanation available for this question. Option B is the verified correct answer.