Question:
Majority of cells cannot be seen directly with our naked eyes because
(a) organisms are generally unicellular
(b) cells are microscopic
(c) cells are present only inside the body
(d) cells are grouped into tissues
Solution:
(b) A cell is the smallest and basic unit of life which has definite structure and performs a specific function. Most of them cannot be seen with naked
eyes because they are microscopic (i.e very-very small).