Question

Which of these observations helped scientists develop the Cell Theory? A) All cells have DNA B) Many different types of cells have organelles. C) Cells are modified for different functions. D) All parts of a plant are made of cells.

Answer 1

Answer - D
The first cell discovered was a plant cell, hence the cell theory developed by the scientists was based on the fact that all parts of the plant are made up of cells.

Answer 2

One of the observations that helped scientists develop the cell theory was that all parts of the plant are made of cells. This was discovered by Matthias Schleiden. The correct answer is D.