Final answer:
The statements b), d), and e) provide historical observations and technological advancements that led to the development and support of cell theory. Schleiden's observations, microscope development, and the discovery of cells in animal tissue are directly related to the formation of cell theory.
Step-by-step explanation:
Statements that support or led to the discovery of the cell theory are based on key historical scientific observations and advancements. The correct answers that contributed to the development of the cell theory are:
- Schleiden's observation of plant cells in various samples of plant tissue.
- Development of the microscope, which allowed scientists to observe cells and their division.
- Cells were found in animal tissue.
- Rudolf Virchow's proposal that all cells arise only from other existing cells.
Meiosis is related to cell division but is not directly evidence that led to the development of the cell theory. One-celled organisms reproducing by binary fission supports the idea that all cells come from pre-existing cells, but it is not one of the historical observations that led to the cell theory. The statement that spontaneous generation is accepted among scientists is incorrect, as spontaneous generation has been disproved and does not align with the principles of cell theory. Lastly, Watson's and Crick's discovery of the structure of DNA is a significant scientific finding, but it was not directly involved in the initial formation of the cell theory.