New cells come from other cells. This fundamental principle of biology is stated in the cell theory, which posits that all living cells arise from pre-existing cells through the process of cell division. The other options listed, such as the Golgi body, nucleus, and macrophages, do not generate new cells by themselves.
- The Golgi body is involved in modifying, sorting, and packaging proteins and lipids for secretion or delivery to other organelles.
- The nucleus contains genetic material and is responsible for regulating cellular activities, but it does not create new cells.
- Macrophages are a type of immune cell, and while they may reproduce, they themselves come from existing cells.
Therefore, the correct answer is other cells.
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