Question

Who or what

btw this is 6th grade science and this is not a true or false question

Answer 1

This is called cell theory. This was first proposed by Theodor Schwann and became an important part of science today.

Answer 2

this is the cell theory, which was proposed by Theodor Schwann in 1839

Step-by-step explanation:

• in biology, cell theory is the historic scientific theory
• it states that living organisms are made up of cells, they are the basic structural/organizational unit of all organisms and all cells come from pre-existing cells.