He advanced the cell theory with his conclusion that cells could only come from other cells:
{"Image DocumentName": "He advanced the cell theory with his conclusion that cells could only come from other cells:", "Image ImageDescription": "Anton van Leeuwenhoek. Rudolph Virchow. Theodor Schwann. Robert Hooke. Which of the following is NOT one of the main components of the cell theory? A. cells must contain DNA B. all living things are made of cells C. cells can only come from other cells D. cells are the basic unit of life.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}