Question

In 1839, Matthias Schleiden, a German botanist, published research showing that a cell's nucleus plays a part in its reproduction. In 1858, Rudolf Virchow, a German biologist, published research showing that all cells come from preexisting cells. Which of the following bestdescribes how the two scientists' discoveries influenced cell theory?

A. The two scientists' discoveries helped cell theory become more accurate.
B. The two scientists' discoveries helped to simplify cell theory.
C. The two scientists' discoveries helped to complicate future discoveries.
D. The two scientists' discoveries helped to debunk cell theory.

Answer 1

Discoveries by Matthias Schleiden and Rudolf Virchow helped cell theory become more accurate by reinforcing that cells arise from other cells and play a key role in reproduction.

Step-by-step explanation:

Matthias Schleiden and Rudolf Virchow's discoveries influenced cell theory significantly. Schleiden's observation that a cell's nucleus plays a part in its reproduction and Virchow's research showing that all cells come from preexisting cells helped cell theory become more accurate. These discoveries supported the principles that all living things are composed of one or more cells, that the cell is the basic unit of life, and that all new cells arise from existing cells. Therefore, the correct answer would be: A. The two scientists' discoveries helped cell theory become more accurate.