MPSC PYQScienceenglish
Which of the following statements are correct about the cell theory of Schleiden and Schwann? (a) All living things are composed of one or more cells. (b) New cells are formed from the pre-existing cells. (c) There are basic similarities in chemical composition and metabolic functions of cells. (d) The activity of an organism is collective activities and interactions of its cellular structures.
A.(a) and (b)
B.(a), (b) and (c)
C.(a), (c) and (d)
D.All of the above
Correct answer: D