Question

Question 2
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

Answer 1

(b) cells are microscopic

Most of the cells are microscopic in size and are not visible to the unaided eye. They need to be enlarged or magnified by a microscope.