ILL GIVE BRAINLIEST PLZ ANSWER Which of the following instruments did scientists use to observe cells and formulate the cell theory?
Magnifying glass
Microscope
Piece of glass
Eyeglass lens
Microscope. All the scientists used microscope because it can see very small particles. The theory of cell was propounded by Robert Hooke(1665), Dujardin(1835), Mathias Schleiden(1838) and Theodor Schwann(1839)
This is a easy question but I can see why you may have trouble with this the microscope is used to look very closely at objects yes all the other can look closely but a microscope looks very closely