Which of the following is not correct?
(a) Robert Brown discovered the cell.
(b) Schleiden and Schwann formulated the cell theory.
(c) Virchow explained that cells are formed from pre-existing cells.
(d) A unicellular organism carries out its life activities within a single cell.
Briefly describe the structure of the following:
(a) Brain
(b) Eye
(c) Ear
Name the components of the formed elements in the blood and mention one major function of each of them.